Practice test

Acids, bases and salts - Test Set 5

Review 9 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

9 questions

Questions and explanations

  1. Question 1

    SSC Multitasking 2014
    Aqua-regia is a mixture of the following in the ratio 1 : 3 by volume
    1. conc. HNO₃ and conc. HCl
    2. conc. HNO₃ and conc. H₂SO₄
    3. dil. HCl and dil. HNO₃
    4. conc. HCl and conc. HNO₃
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  2. Question 2

    SSC 2017
    An acid is a substance which
    I. is sour in taste
    II. turns red litmus paper into blue
    1. Only I is correct
    2. Only II is correct
    3. Both I and II
    4. None of these
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  3. Question 3

    UP Lower Sub. (Pre) 2015
    Which one of the following pairs is not correctly matched?
    1. Lactose - Sour milk
    2. Carbonic acid - Soda water
    3. Formic acid - Red ants
    4. Tartaric acid - Grape juice
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  4. Question 4

    SSC 2017
    Substances which are generally bitter in taste and feel soapy on touching are known as
    1. acids
    2. bases
    3. indicators
    4. litmus
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  5. Question 5

    Chhattisgarh PCS (Pre) 2016
    Antaicds are
    1. base
    2. acid
    3. salt
    4. buffer
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  6. Question 6

    Chhattisgarh PCS (Pre) 2018
    Baking soda is
    1. Na₂CO₃
    2. NaHCO₃ · 6H₂O
    3. NaHCO₃
    4. NaCO₃ · 10H₂O
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  7. Question 7

    RAS/RTS (Pre) 2016
    The chemical formula of baking soda is
    1. Ca(OH)₂
    2. NaHCO₃
    3. CaCO₃
    4. Na₂CO₃
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  8. Question 8

    NDA 2018
    Which of the following properties is true for a tooth paste?
    1. It is acidic.
    2. It is neutral.
    3. It is basic.
    4. It is made up of calcium phosphate, the material of tooth enamel.
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  9. Question 9

    UPSC 2019
    The soda-acid fire extinguisher contains
    1. sulphuric acid and solution of sodium hydrogen carbonate.
    2. nitric acid and solution of sodium hydrogen carbonate.
    3. sulphuric acid and solution of sodium carbonate.
    4. sulphuric acid and solution of potassium carbonate.
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