Q41. Which of the following is the correct statement? (a) Phosphates have no biological significance in humans. (b) Betw

Q42. Among the following the correct statement is A. Between NH3 and PH3, NH3 is a better electron donor because the lon

Q44. PH3 is a better reducing agent than NH3 because: (a) PH3 can give its lone pair of electron easily (b) Bond dissoci

Q39. Out of given options choose a word that can be used as an adjective as well as an adverb.

Select the one which is different from the other three alternatives: 1. 7, 56, 2. 13, 78, 3. 9, 64, 4. 11, 132.

Profit earned by selling an article for Rs.1060 is 20% more than the loss incurred by selling the article for Rs.950. At

Iceland is an example of ___________

Match List-I with List-II List-I (Expressions): (A) Find x (B) Evaluate: , n = 6, r = 2 (C) If , find . (D) List-II (V

In an examination which had 200 questions, students score 4 marks for every correct answer and lose 1 mark for every wro