{"id":1906,"date":"2026-05-22T11:14:22","date_gmt":"2026-05-22T11:14:22","guid":{"rendered":"https:\/\/mymockmate.com\/notes\/?p=1906"},"modified":"2026-05-22T11:14:26","modified_gmt":"2026-05-22T11:14:26","slug":"sets-exercise-1-2-solutions-class-11-maths-ncert","status":"publish","type":"post","link":"https:\/\/mymockmate.com\/notes\/sets-exercise-1-2-solutions-class-11-maths-ncert\/","title":{"rendered":"Sets Exercise 1.2 Solutions Class 11 Maths NCERT"},"content":{"rendered":"\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Short Intro<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">In this post, students can find complete step-by-step solutions for Class 11 Maths Chapter 1 Exercise 1.2 \u2013 Sets based on the latest NCERT syllabus. This exercise covers null sets, finite and infinite sets, equal sets, subsets, and set properties in a simple and exam-oriented format.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Quick Information Box<\/h1>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Item<\/th><th>Details<\/th><\/tr><\/thead><tbody><tr><td>Board<\/td><td>NCERT \/ CBSE<\/td><\/tr><tr><td>Class<\/td><td>11<\/td><\/tr><tr><td>Subject<\/td><td>Mathematics<\/td><\/tr><tr><td>Chapter<\/td><td>Sets<\/td><\/tr><tr><td>Exercise<\/td><td>1.2<\/td><\/tr><tr><td>Main Topics<\/td><td>Null Sets, Finite &amp; Infinite Sets<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Concepts Used (Topics Covered)<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Empty Set (Null Set)<\/li>\n\n\n\n<li>Finite Sets<\/li>\n\n\n\n<li>Infinite Sets<\/li>\n\n\n\n<li>Equal Sets<\/li>\n\n\n\n<li>Elements of Sets<\/li>\n\n\n\n<li>Set Representation<\/li>\n\n\n\n<li>Subsets<\/li>\n\n\n\n<li>Universal Set<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The chapter explains empty sets, finite and infinite sets, and equal sets.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Important Formulas<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">Empty Set<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mi>\u03d5<\/mi><mo>=<\/mo><mo stretchy=\"false\">{<\/mo><mo stretchy=\"false\">}<\/mo><\/mrow><annotation encoding=\"application\/x-tex\">\\phi=\\{\\}<\/annotation><\/semantics><\/math><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Equal Sets<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mi>A<\/mi><mo>=<\/mo><mi>B<\/mi><mtext>\u2005\u200a<\/mtext><mo>\u27fa<\/mo><mtext>\u2005\u200a<\/mtext><mtext>every&nbsp;element&nbsp;of&nbsp;<\/mtext><mi>A<\/mi><mtext>&nbsp;belongs&nbsp;to&nbsp;<\/mtext><mi>B<\/mi><mtext>&nbsp;and&nbsp;vice&nbsp;versa<\/mtext><\/mrow><annotation encoding=\"application\/x-tex\">A=B\\iff \\text{every element of }A\\text{ belongs to }B\\text{ and vice versa}<\/annotation><\/semantics><\/math><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Subset Formula<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mi>A<\/mi><mo>\u2282<\/mo><mi>B<\/mi><mtext>\u2005\u200a<\/mtext><mo>\u27fa<\/mo><mtext>\u2005\u200a<\/mtext><mi>x<\/mi><mo>\u2208<\/mo><mi>A<\/mi><mo>\u21d2<\/mo><mi>x<\/mi><mo>\u2208<\/mo><mi>B<\/mi><\/mrow><annotation encoding=\"application\/x-tex\">A\\subset B\\iff x\\in A\\Rightarrow x\\in B<\/annotation><\/semantics><\/math><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Universal Set<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mi>U<\/mi><mo>=<\/mo><mtext>Universal&nbsp;Set<\/mtext><\/mrow><annotation encoding=\"application\/x-tex\">U=\\text{Universal Set}<\/annotation><\/semantics><\/math><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Questions &amp; Step-by-step Solutions<\/h1>\n\n\n\n<h1 class=\"wp-block-heading\">Question 1<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Which of the following are examples of null set?<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">(i) Set of odd natural numbers divisible by 2<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">No odd natural number is divisible by 2.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Therefore:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>This is a null set.<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">(ii) Set of even prime numbers<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">2 is an even prime number.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Therefore:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>This is NOT a null set.<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">(iii)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mo stretchy=\"false\">{<\/mo><mi>x<\/mi><mo>:<\/mo><mi>x<\/mi><mtext>&nbsp;is&nbsp;natural&nbsp;number<\/mtext><mo separator=\"true\">,<\/mo><mi>x<\/mi><mo>&lt;<\/mo><mn>5<\/mn><mtext>&nbsp;and&nbsp;<\/mtext><mi>x<\/mi><mo>&gt;<\/mo><mn>7<\/mn><mo stretchy=\"false\">}<\/mo><\/mrow><annotation encoding=\"application\/x-tex\">\\{x:x\\text{ is natural number},x&lt;5\\text{ and }x&gt;7\\}<\/annotation><\/semantics><\/math><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">No natural number can satisfy both conditions simultaneously.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Therefore:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>This is a null set.<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">(iv)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Set of common points of two parallel lines<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Parallel lines never intersect.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Therefore:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>This is a null set.<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Question 2<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">State whether finite or infinite.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">(i) Set of months in a year<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">There are 12 months.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Finite set<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">(ii)<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>{1,2,3,...}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Natural numbers continue endlessly.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Infinite set<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">(iii)<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>{1,2,3,...,100}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Contains 100 elements.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Finite set<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">(iv)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Positive integers greater than 100<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Numbers continue infinitely.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Infinite set<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">(v)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Prime numbers less than 99<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Limited number of primes exist below 99.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Finite set<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Question 3<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">State whether finite or infinite.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">(i)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Set of lines parallel to x-axis<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Infinite lines can be drawn parallel to x-axis.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Infinite set<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">(ii)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Set of English alphabets<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">There are 26 letters.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Finite set<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">(iii)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Set of multiples of 5<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Multiples continue endlessly.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Infinite set<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">(iv)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Set of animals living on earth<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Number is countable and limited.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Finite set<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">(v)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Set of circles passing through origin<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Infinite circles can pass through origin.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Infinite set<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Question 4<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">State whether:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>A = B<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">or not.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">(i)<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>A={a,b,c,d}<br>B={d,c,b,a}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Both contain same elements.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>A = B<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">(ii)<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>A={4,8,12,16}<br>B={8,4,16,18}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">12 belongs to A but not B.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>A \u2260 B<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">(iii)<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>A={2,4,6,8,10}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>B={x:x is positive even integer and x\u226410}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Both represent same elements.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>A = B<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">(iv)<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>A={x:x is multiple of 10}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>B={10,15,20,25,30,...}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">15 and 25 are not multiples of 10.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>A \u2260 B<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Question 5<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Are the following sets equal?<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">(i)<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>A={2,3}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>B={x:x\u00b2+5x+6=0}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Solving:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><msup><mi>x<\/mi><mn>2<\/mn><\/msup><mo>+<\/mo><mn>5<\/mn><mi>x<\/mi><mo>+<\/mo><mn>6<\/mn><mo>=<\/mo><mn>0<\/mn><\/mrow><annotation encoding=\"application\/x-tex\">x^2+5x+6=0<\/annotation><\/semantics><\/math><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Factorizing:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(x+2)(x+3)=0<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Roots:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>x=\u22122,\u22123<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Therefore:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>B={\u22122,\u22123}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Hence:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>A \u2260 B<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">(ii)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Letters of FOLLOW and WOLF<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">FOLLOW = {F,O,L,W}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">WOLF = {W,O,L,F}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Both contain same elements.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Sets are equal.<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Question 6<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Select equal sets.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>A={2,4,8,12}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>B={1,2,3,4}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>C={4,8,12,14}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>D={3,1,4,2}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>E={\u22121,1}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>F={0,a}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>G={1,\u22121}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>H={0,1}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Solution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Comparing elements:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>B = D<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">and<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>E = G<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Common Mistakes<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Repeating elements unnecessarily<\/li>\n\n\n\n<li>Confusing empty set with zero<\/li>\n\n\n\n<li>Forgetting order does not matter in sets<\/li>\n\n\n\n<li>Confusing finite and infinite sets<\/li>\n\n\n\n<li>Writing duplicate elements<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Exam Tips<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Memorize important set symbols.<\/li>\n\n\n\n<li>Practice roster and set-builder form.<\/li>\n\n\n\n<li>Remember that order does not matter in sets.<\/li>\n\n\n\n<li>Solve equality questions carefully.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Practice MCQs<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">MCQ 1<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Which is a null set?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A. Even prime numbers<br>B. Odd numbers divisible by 2<br>C. Multiples of 5<br>D. Natural numbers<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Answer:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>B. Odd numbers divisible by 2<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">MCQ 2<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Which is an infinite set?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A. Months in a year<br>B. Prime numbers less than 10<br>C. Natural numbers<br>D. English alphabets<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Answer:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>C. Natural numbers<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">MCQ 3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Equal sets contain:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A. Same number of elements<br>B. Same order<br>C. Exactly same elements<br>D. Same symbols<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Answer:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>C. Exactly same elements<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">FAQ Section<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">What is a null set?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A set having no element is called null set.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">What is a finite set?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A set having limited number of elements.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">What is an infinite set?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A set having unlimited elements.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">What are equal sets?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sets having exactly same elements are called equal sets.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udcd8 Prepare Smarter with MyMockMate!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 Chapter-wise NCERT Solutions<br>\u2705 Important Notes &amp; MCQs<br>\u2705 Online Mock Tests<br>\u2705 Instant Result &amp; Analysis<br>\u2705 CBSE Board Preparation<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Start learning now on <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/www.mymockmate.com?utm_source=chatgpt.com\">MyMockMate<\/a><\/p>\n\n    <div class=\"xs_social_share_widget xs_share_url after_content \t\tmain_content  wslu-style-1 wslu-share-box-shaped wslu-fill-colored wslu-none wslu-share-horizontal wslu-theme-font-no wslu-main_content\">\n\n\t\t\n        <ul>\n\t\t\t        <\/ul>\n    <\/div> \n","protected":false},"excerpt":{"rendered":"<p>Short Intro In this post, students can find complete step-by-step solutions for Class 11 Maths Chapter 1 Exercise<\/p>\n","protected":false},"author":1,"featured_media":1907,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_angie_page":false,"_surecart_dashboard_logo_width":"180px","_surecart_dashboard_show_logo":true,"_surecart_dashboard_navigation_orders":true,"_surecart_dashboard_navigation_invoices":true,"_surecart_dashboard_navigation_subscriptions":true,"_surecart_dashboard_navigation_downloads":true,"_surecart_dashboard_navigation_billing":true,"_surecart_dashboard_navigation_account":true,"postBodyCss":"","postBodyMargin":[],"postBodyPadding":[],"postBodyBackground":{"backgroundType":"classic","gradient":""},"page_builder":"","footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[6,9,135],"tags":[312,187,286,285,301,292,293,316,156,46,315,290,304,291,306,62,308,159,47,310,288,289,314,311,309,313,287,303,294,295],"class_list":["post-1906","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-class-11","category-maths-class-11","category-sets","tag-basic-set-concepts","tag-cbse-board-maths-preparation","tag-cbse-class-11-maths","tag-class-11-maths","tag-class-11-maths-notes","tag-empty-set","tag-equal-sets","tag-equal-sets-problems","tag-exercise-1-2-ncert-solutions","tag-exercise-1-2-solutions","tag-finite-and-infinite-sets","tag-finite-sets","tag-important-questions-sets","tag-infinite-sets","tag-mathematical-sets","tag-maths-chapter-1-solutions","tag-mymockmate","tag-ncert-maths-notes","tag-ncert-solutions","tag-null-set","tag-roster-form","tag-set-builder-form","tag-set-symbols","tag-set-theory","tag-sets","tag-sets-and-operations","tag-sets-chapter-1","tag-sets-mcqs","tag-subsets","tag-universal-set"],"jetpack_publicize_connections":[],"_links":{"self":[{"href":"https:\/\/mymockmate.com\/notes\/wp-json\/wp\/v2\/posts\/1906","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mymockmate.com\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mymockmate.com\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mymockmate.com\/notes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mymockmate.com\/notes\/wp-json\/wp\/v2\/comments?post=1906"}],"version-history":[{"count":1,"href":"https:\/\/mymockmate.com\/notes\/wp-json\/wp\/v2\/posts\/1906\/revisions"}],"predecessor-version":[{"id":1908,"href":"https:\/\/mymockmate.com\/notes\/wp-json\/wp\/v2\/posts\/1906\/revisions\/1908"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mymockmate.com\/notes\/wp-json\/wp\/v2\/media\/1907"}],"wp:attachment":[{"href":"https:\/\/mymockmate.com\/notes\/wp-json\/wp\/v2\/media?parent=1906"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mymockmate.com\/notes\/wp-json\/wp\/v2\/categories?post=1906"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mymockmate.com\/notes\/wp-json\/wp\/v2\/tags?post=1906"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}