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

Chapter-5:SURFACE CHEMISTRY   Question. Which gas will be adsorbed on a solid to greater extent. (A) A gas having non polar molecule (B) A gas having highest critical temperature (Tc) (C) A gas having lowest critical temperature. (D) A gas having highest critical…

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

Value Based Questions Chapter-15: POLYMERS 1) At a sweet shop in Hyderabad, Rishi bought some sweets. He requested the sales boy to put the sweets in a polythene bag. The sales boy refused to do so, instead he kept the sweet box in a paper bag. After reading the above…

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

Chapter-3: ELECTROCHEMISTRY Question. Kailash goes to the market to purchase battery for his car. Two types of batteries are shown to him, one with cadmium plates which is relatively more costlier while the other one with lead plates which is cheaper. The shopkeeper advises…

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. [Fe(NO2)3Cl3] and [Fe (ONO)3Cl3] show (a) Linkage isomerism (b) Optical isomerism (c) Geometrical isomerism (d) None of these Answer. A Question. The diamagnetic species is (a) [Ni(CN)4]2- (b) [NiCl4]2- (c) [CuCl4]2- (d) [CoF6]3- Answer. B Question. The oxidation…

CBSE Class 12 Chemistry Chemistry In Everyday Life VBQs

Chapter-16 Chemistry in everyday life 1)There is a poster with the slogan” Hum do hamare do” pasted on a wall Answer the following questions based on above slogan: i) What message does above slogan convey? ii)Use of condoms and anti-fertility drugs help in avoiding…