Class 10 Science Acid base and Salts Important Problem
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Multiple Choice questions
When a solution of an acid contains larger amount of acid, it is said to be-
(d) polybasic Question 2
etals like sodium, potassium and calcium react with an acid to liberate-
(d)H2 Question 3
Which of the following is a weak acid?
(a) sulphuric acid
(b) hydrochloric acid
(c) acetic acid
(d) nitric acid Question 4
The chemical formula of baking soda is
(d) NaOH Question 5
Which of the following phenomena occur, when a small amount of acid is added to water?
( d) Salt formation Question 6
Salt form during reaction of sulphuric acid with copper
(d) NH4CI Question 7
CuSO4. K2SO4 is
(b) a mixed salt
(c) normal salt
(d) double salt Question 8
The acid present in vinegar
(b) tartaric acid
(c) ascorbic acid
(d) acetic acid Question 9
Acid reacts with---------- of metals to form salt and water.
(d) sulphides Question 10
Which of these bases is not an alkali?
(c) AI (OH)3
(d) all of the are alkalies Question 11
Which substance is used to purify water
(b) copper sulphate
(d) none of these Question 12
H3PO4 is the example of-
(b) organic acid
(d) salt Question 13
To protect tooth decay we are advised to brush our teeth regularly. The nature of the tooth paste commonly used is
(d) corrosive Question 14
Which of the following substance will not give carbon dioxide on treatment with dilute acid?
(c) Baking soda
(d)Lime Question 15
A compound that reacts with an acid to form a salt and water is called
(d) none of these Question 16
An indicator is what type of compound?
(a) reducing agent
(b) strong base or acid
(c) weak base or acid
(d) salt Question 17
H2SO4 can be prepared by reaction of water with-
(d) SO3 Question 18
The acidity of Fe(OH)3 is
(d) 5 Question 19
The example of olfactory indicators is
(a) Methyl orange
(c) blue litmus
The aqueous solution of sodium acetate is
(d) none of these Answers
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