NCERT Class 12 Chemistry Short Questions & Answers NCERT Class 12 Chemistry QUESTIONS NCERT Class 12 Chemistry Short Questions & Answers 1 Mole fraction of glycerine C3H5(OH)3 in solution containing 36 g of water and 46 g of glycerine is A 0.40 B 0.46 C 0.36 D 0.20 Answer: 0.20 2 The first step in … Read more
NCERT Class 12 Chemistry Gk Questions & Answers NCERT Class 12 Chemistry QUESTIONS NCERT Class 12 Chemistry Gk Questions & Answers 11 Which one of the following characteristics of the transistion metals is associated with higher catalytic activity? A Colour of hydrate ions B Variable oxidation states C Paramagnetic behaviour D High enthalpy of atomisation … Read more
NCERT Class 12 Chemistry Multiple Choice Questions(MCQs) & Answers NCERT Class 12 Chemistry QUESTIONS NCERT Class 12 Chemistry Multiple Choice Questions(MCQs) & Answers 21 Trunbull’s blue is A Ferrous ferricyanide B Fe3[Fe(CN)6]4 C Ferrous cyanide D Ferricyanide Answer: Ferrous ferricyanide 22 Roasted copper pyrites on smelting with sand produces A FeSiO3 and Cu2S B Fe3(PO4)2 … Read more
NCERT Class 12 Chemistry very short Questions & Answers NCERT Class 12 Chemistry QUESTIONS NCERT Class 12 Chemistry very short Questions & Answers 31 Which one of the following ore is concentrated by chemical leaching method? A Argentite B Cinnabar C Copper pyrites D Galena Answer: Argentite 32 In the following question a statement of … Read more
NCERT Class 12 Chemistry Multiple Choice Questions(MCQs) & Answers NCERT Class 12 Chemistry QUESTIONS NCERT Class 12 Chemistry Optional Questions with Answers 41 Electrolytic reduction of Al2O3 to Al by Hall- Herault process is carried out A in presence of cryolite which forms a melt with high melting point. B in presence of cryolite which … Read more
NCERT Class 12 Chemistry Multiple Choice Questions(MCQs) & Answers NCERT Class 12 Chemistry QUESTIONS NCERT Class 12 Chemistry Objective type Questions & Answers 51 A drug that is antiseptic as well as analgesic is A Para acetamidophenol B Paracetamol C Chloropromazine hydrochloride D Chloramphenicol Answer: Para acetamidophenol 52 Which one is a broad spectrum drug? … Read more
NCERT Class 12 Chemistry General Awareness Questions with Answers NCERT Class 12 Chemistry QUESTIONS NCERT Class 12 Chemistry General Awareness Questions with Answers 61 Which of the following statements about the catalyst is true? A A catalyst accelerates the rate of reaction by bringing down the activation energy. B A catalyst does not participate in … Read more
NCERT Class 12 Chemistry Entrance Exams Questions & Answers NCERT Class 12 Chemistry QUESTIONS NCERT Class 12 Chemistry Entrance Exams Questions and Answers 71 The half life of the first order reaction having rate constant K = 1.7 x 10-5s-1 is A 11.3 h B 1.8 h C 12.1 h D 9.7 h Answer: 11.3 … Read more
NCERT Class 12 Chemistry Competitive Exams Questions and Answers NCERT Class 12 Chemistry QUESTIONS NCERT Class 12 Chemistry Competitive Exams Questions and Answers 81 In comparison to a 0.01 M solution of glucose, the depression in freezing point of a 0.01 M MgCl2 solution is _________ . A the same B about twice C about … Read more
NCERT Class 12 Chemistry General Awareness Questions and Answers NCERT Class 12 Chemistry QUESTIONS NCERT Class 12 Chemistry General Awareness Questions and Answers 91 NH4NC>3 is used in salt bridge because A it forms a jelly like material with agar-agar. B it is a weak electrolyte. C it is a good conductor of electricity. D … Read more