CBSE Class 12 Chemistry Chemical Kinetics Worksheet

 XII - Chemistry Chemical Kinetics CBSE SECTION SECTION - 1 VERY - SHORT - ANSWER QUESTION   1. Define the term rate of reaction.   2. Define the term ‘Rate Constant’.   3. What is meant by half life period for zero order?   4. Write an expression for the half life period…

CBSE Class 12 Chemistry The Solid State Worksheet Set B

CBSE Class 12 Chemistry The Solid State Worksheet Set B               Very Short Answer Q1)       What is coordination number? Q2)       What are Bravais lattices? Q3)       What is packing efficiency? Q4)       What is Bohr magneton? Q5)       What is intrinsic semiconductor…

CBSE Class 12 Chemistry The Solid State Worksheet Set A

Question. The pure crystalline substance on being heated gradually first forms a turbid liquid at constant temperature and still at higher temperature turbidity completely disappears. The behaviour is a characteristic of substance forming (a) allotropic crystals (b) liquid…

CBSE Class 12 Chemistry The p Block Elements Worksheet Set C

CBSE Class 12 Chemistry The p Block Elements Worksheet Set C               Very Short Answer Q1)       Which elements are radioactive elements? Q2)       What are halogens? Q3)       When and who discovered chlorine? Q4)       What is noble gas? Q5)       How can we prepare…

CBSE Class 12 Chemistry The p Block Elements Worksheet Set B

CBSE Class 12 Chemistry The p Block Elements Worksheet Set B               Very Short Answer Q1)       How polonium occurs? Q2)       Define amphoteric oxides? Q3)       What is Holme’s signal? Q4)       Why does PCl3 fume in moisture? Q5)       What is neutral oxide…

CBSE Class 12 Chemistry The p Block Elements Worksheet Set A

Question. Which of the following will show highest solubility in water? (a) NH3 (b) PH3 (c) AsH3 (d) SbH3 Answer. A Question. Pure nitrogen is obtained from (a) NH3 + NaNO3  (b) N2O + Cu (c) NH4 Cl +NaNO2  (d) (NH4)2 Cr2O7 Answer. D Question. Which of the following…

CBSE Class 12 Chemistry The d and f Block Elements Worksheet Set B

CBSE Class 12 Chemistry The d and f Block Elements Worksheet Set B               Very Short Answer Q1)       Which chemical is used in leather industry? Q2)       Which transition element does not exhibit variable oxidation states? Q3)       How the magnetic moments…

CBSE Class 12 Chemistry The d and f Block Elements Worksheet Set A

Question. Which of the following are d-block elements but not regarded as transition elements? (a) Cu, Ag, Au (b) Zn, Cd, Hg (c) Fe, Co, Ni (d) Ru, Rh, Pd Answer. B Question. The property which is not characteristic of transition metals is (a) variable oxidation states. (b)…

CBSE Class 12 Chemistry Surface Chemistry Worksheet Set C

CBSE Class 12 Chemistry Surface Chemistry Worksheet Set C               Very Short Answer Q1)       Define surface chemistry? Q2)       What is desorption? Q3)       What are the types of adsorption? Q4)       Who gave the adsorption isotherm? Q5)       Which type of…

CBSE Class 12 Chemistry Surface Chemistry Worksheet Set B

CBSE Class 12 Chemistry Surface Chemistry Worksheet Set B               Very Short Answer Q1)       What is Ostwald’s process? Q2)       Define coagulation? Q3)       What are the two types of emulsions? Q4)       What are micelles? Q5)       What is Kraft temperature…

CBSE Class 12 Chemistry Surface Chemistry Worksheet Set A

Question. Which one of the following characteristics is associated with adsorption? (a) DG and DH are negative but DS is positive. (b) DG and DS are negative but DH is positive. (c) DG is negative but DH and DS are positive. (d) DG, DH and DS all are negative. Answer. D…

CBSE Class 12 Chemistry Solutions Worksheet Set B

Very Short Answer Question. Define isotonic solutions? Answer. Two solutions having same osmotic pressure at a given temperature is called isotonic solutions. Question. How can we obtain colligative properties? Answer. Colligative properties are…

CBSE Class 12 Chemistry Solutions Worksheet Set A

Question. An ‘A’molal solution of a compound in benzene has mole fraction of solute = 0.2. The value of A is (a) 1.4 (b) 14.0 (c) 3.2 (d) 2.0 Answer. C Question. What will be the normality of resulting solution in which 5 mL of MHCl, 20 mL of M/2 H2SO4 and 30 mL of M/3 HNO3…

CBSE Class 12 Chemistry Polymers Worksheet Set D

CBSE Class 12 Chemistry Polymers Worksheet Set A               Very Short Answer Q1)       What is homopolymers? Q2)       What is bakelite? Q3)       Define polymerisation? Q4)       What are copolymers? Q5)       What are the uses of bakelite?                            …

CBSE Class 12 Chemistry Haloalkanes and Haloarenes Worksheet Set B

ASSERTION-REASON TYPE OF QUESTIONS The question given below consist of an assertion and a reason use the following key to choose appropriate answer a) Both assertion and reason are correct and reason is the correct explanation of the assertion b) Both assertion and reason are…