I am searching here question papers for Karnataka Second PUC science chemistry subject examination in PDF file format ?

Here I am giving you question papers for Karnataka Second PUC science chemistry subject examination in PDF file attached with it . so you can get it easily.

PART-A
I. Answer ALL of the following. (Each question carries 1 mark) 10x1=10
(Answer each question in one word or in one sentence)
1. Name a colligative property.
2. What does the Van’t Hoff factor ‘ i ’ for a solute in a solvent account for?
3. What is a secondary cell?
4. By how many times does the t½ of zero order reaction increase if the initial
concentration of the reactant is doubled?
5. Name the catalyst that catalyzes the decomposition of KClO3 into KCl and O2.
6. Give the composition of ‘copper matte’.
7. What is the structure of XeF2?
8. A racemic mixture is optically inactive. Why?
9. + X. Give the IUPAC name of X.
10. What does the primary structure specify about the structure of a protein.

PART-B
II. Answer any FIVE of the following. (each question carries 2 marks) 5x2=10
11. Give two differences between Schottky and Frenkel defects in ionic solids.
12. Name the gases liberated at anode and cathode respectively when an aqueous
solution of sodium chloride is electrolysed.
13. Given 2NO(g) + O2 (g) ¾¾® 2NO2(g) ; rate = k[NO]2 [O2]1. By how many times
does the rate of the reaction change when the volume of the reaction vessel is
reduced to 1/3rd of its original volume? Will there be any change in the order of
the reaction?
14. Give reasons: i) actinoids show variable oxidation states
ii) Zr and Hf have almost identical radii
15. What is Lucas reagent? Between primary and tertiary alcohols, which one of
these will react faster with Lucas reagent?
16. A carboxylic acid is treated with alcohol in presence of conc. H2SO4. Name the
reaction. Give its general equation.
17. What are food preservatives? Give an example.
18. Name any two types of synthetic detergents.

Karnataka 2nd year PUC Science Chemistry papers