Page 1 - HOME ASSIGNMENT-2-(CH-2-PRACTICE WORK SHEET)

SAI International School
Class-X

Subject_ Chemistry
Topic- Acids, Bases & Salts (FULL CHAPTER)
Ch-1& Ch- 2 Full

Practice Worksheet

Q.1 A solution reacts with crushed egg-shells to give a gas that turns lime-water milky.
The solution contains:

(a) NaCl (b) HCl
(c) LiCl (d)KCl 1mark
Q.2 When NaOH and HCl are mixed in equal molar quantities, the result is

(a) the formation of salt + H2O
(b) the formation of salt + H2(g)
(c) the formation of salt + O2(g)
(d) All above are correct 1mark

Q.3The reaction of metal with acid results in the formation of-
(a) only hydrogen gas
(b) only salt
(c) both salt and hydrogen gas
(d) none of these 1mark

DIRECTION:Each of these questions contains an Assertion followed by Reason. Read them
carefully and answer the question on the basis of following options. You have to select the one that best
describes the two statements.
(a) If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
(b) If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
(c) If Assertion is correct but Reason is incorrect.

(d) If Assertion is incorrect but Reason is correct.
(e) If Assertion & Reason both are incorrect.

Q.4 Assertion: HCl gas does not change the colour of dry blue litmus paper. 1mark

+
Reason: HCl gas dissolves in the water present in wet litmus paper to from H
ions.
Q. 5 Assertion: Ammonia solution is an alkali.
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