CBSE Class 12 Chemistry Value Based Questions Set A
CBSE Class 12 Chemistry Value Based Questions Based on CBSE and NCERT guidelines. Value based questions are now being given in Class 12chemistry exams to promote morals and values in students, Students should read and understand the following VBQs to get better…
CBSE Class 12 Chemistry Value Based Questions Set C
Value based questions Chemistry Question. Rahul observed that families from nearby localities bring loads of laundry to wash in the river practically every day, while others bring their cars, taxis and rickshaws and wash them clean by using water from the river.…
CBSE Class 12 Chemistry Value Based Questions Set G
VALUE BASED QUESTIONS CHEMISTRY CLASS - XII 1. Scuba divers when come towards the surface, the pressure gradually decreases resulting in the released of dissolved gases leading to formation of bubbles of nitrogen gas in the blood which blocks the capillaries and thus…
CBSE Class 12 Chemistry Surface Chemistry VBQs
Question. Activated charcoal is used to remove colouring matter from pure substances. It works by: a. Oxidation b. Reduction c. Bleaching d. Adsorption Answer : D Question. Chemisorption: a. Involves the weak attractive interactions between adsorbent and adsorbate b…
CBSE Class 12 Chemistry Solutions VBQs
Question. Ethylene glycol is used as an antifreeze in a cold climate. Mass of Ethylene glycol which should be added to 4kg water to prevent it from freezing at -60C will be (Kf for water = 1.86Kkg/mol-1, Molar mass of Ethylene glycol = 62g/mol) (a) 204.30g (b) 800g (c) 304.60g…
CBSE Class 12 Chemistry Solid State VBQs
VALUE BASED QUESTIONS Chapter-1.SOLID STATE Very Short Tyoe Questions Answer: Question. Why is glass considered supercooled liquid? Answer. Glass is considered as super cooled liquid because glass is an amorphous solid and has tendency to flow very…
CBSE Class 12 Chemistry Polymers VBQs
Question. Which one of the following is a linear polymer? a. Amylopectin b. Glycogen c. Starch d. Amylose Answer : D Question. Which of the following polymer is an example of fibre? a. Silk b. Dacron c. Nylon-66 d. All of these Answer : D Question. Which of…
CBSE Class 12 Chemistry P Block Elements VBQs
Question. In which of the following compounds, nitrogen exhibits highest oxidation state? (a) N2H4 (b) NH3 (c) N3H (d) NH2OH Answer. C Question. Nitrogen forms N2, but phosphorus does not form P2, however, it converts P4, reason is (a) triple bond present between…
CBSE Class 12 Chemistry Isolation Of Elements VBQs
Chapter-6 GENERAL PRINCIPALS AND PROCEESS OF ISOLATION OF ELEMENTS Question. A washer woman, while washing a miner’s overalls, she noticed that sand and similar dirt fell to the bottom of the wash tub. What was peculiar, the copper bearing compounds that had come to the…
CBSE Class 12 Chemistry Haloalkanes And Haloarenes VBQs
MULTIPLE CHOICE QUESTIONS Question. Arrange the following compounds in increasing order of rate of reaction towards nucleophilic substitution: (a) a < b < c (b) a < b < a (c) a < c < b (d) c < a < b Answer: C Question. Which of the…
CBSE Class 12 Chemistry Electrochemistry VBQs
Question. During the electrolysis of an electrolyte, the number of ions produced, is directly proportional to the: a. Time consumed b. Electro chemical equivalent of electrolysis c. Quantity of electricity passed d. Mass of electrons Answer : C Question. Which of the…
CBSE Class 12 Chemistry D And F Block Elements VBQs
Question. Which one of the following is diamagnetic ion? (a) Co2+ (b) Ni2+ (c) Cu2+ (d) Zn2+ Answer. D Question. Zr and Hf have almost equal atomic and ionic radii because of (a) diagonal relationship (b) lanthanoid contraction (c) actinoid contraction (d) belonging to the…
CBSE Class 12 Chemistry Coordination Compounds VBQs
Question. A co-ordination complex compound of cobalt has the molecular formulae containing five ammonia molecules, one nitro group and two chlorine atoms for one cobalt atom. One mole of this compound produces three mole ions in an aqueous solution on…
CBSE Class 12 Chemistry Chemistry In Everyday Life VBQs
Question. Which of the following is an antidiabetic drug? (a) Insulin (b) Penicillin (c) Chloroquine (d) Aspirin Answer : A Question. Further growth of cancerous cells in the body is arrested by (a) physiotherapy (b) chemotherapy (c) electrotherapy (d) psychotherapy Answer :…