Correct Answer : Option (D) - presence of free electrons
Correct Answer : Option (A) -
Correct Answer : Option (B) - ethylene
Correct Answer : Option (A) - its high electro negativity
Correct Answer : Option (B) - produce in small amounts the hydrochloric acid required for the digestion of food
Correct Answer : Option (A) - 0.5 mole
Correct Answer : Option (C) - 39 KJ
Correct Answer : Option (D) - diamond
Correct Answer : Option (C) - DNA molecules
Correct Answer : Option (C) - caffeine