GATE CSE 2016 SET 2

Planning to take coaching on Unacademy http://bit.ly/gate_unacademy or https://unacademy.com/ here is a code for 10% off PLUS1BPK1 Telegram Notification Group link:- https://t.me/joinchat/X5egW_cvdt9kMGY1 Telegram discussion Group link:- https://t.me/joinchat/VCyGUmVq8RNkMzhl Downloads resources from here https://education4fun.com/gate-cse/ MCQ (Single Correct Answer) GATE CSE 2016 Set 2 Consider a set U of 23 different compounds in a Chemistry lab. There is a subset S of U of 9 compounds, each of which reacts with exactly 3 compounds of U. Consider the following statements: Each compound in U \ S reacts with an odd number of compounds. II. At least one compound in U \ S reacts with an odd number of compounds. III. Each compound in U \ S reacts with an even number of compounds. Which one of the above statements is ALWAYS TRUE? (A) Only I(B) Only II(C) Only III(D) None