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SAI International School
Subject – Chemistry
Class – X
Competency Based Worksheet
CHAPTER-2 [ ACIDS, BASES AND SALTS]
1. The p H of three solutions is given in the table:-
SOLUTION p H
P 1
Q 7
R 14
a) Which of these solutions could possibly react with zinc metal to produce
hydrogen gas?
b) Which of these solutions could be formed by the reaction of metal oxide
with water?
c) Which of these solutions could be the raw material for the industrial
manufacture of chlorine?
2. Consider the following salts:-
(i) NaF
(ii) NaClO4
(iii) NaHSO4
Which of these salts when dissolved in water would form a basic solution?
a) (i) b) (ii) and (iii) c) (i) and (iii) d) (iii)
3. Burning magnesium ribbon is brought in the gas jar of carbon dioxide. Which of
the following is correct?
