acids, bases, salts and metals - Category wise Question and Answer Practice Test with Solutions

Question : 16

Which of the following is a strong base?

a) Sodium hydroxide (NaOH)

b) Water (H₂O)

c) Ammonium hydroxide (NH₄OH)

d) Sulfuric acid (H₂ SO₄)

Question : 17 [CDS]

On the labels of the bottles, some soft drinks are claimed to be acidity regulators. They regulate acidity using

a) Bicarbonate salts

b) Carbon dioxide

c) Carbon dioxide and lime

d) Both (a) and (b)

Question : 18

If pH of A, B, C and D are 9.5, 2.5, 3.5 and 5.5 respectively, then strongest acid is

a) C

b) D

c) A

d) B

Question : 19 [NDA]

Which one among the following is the correct order of strength of acids ?

a) CH₃COOH > H₃PO₃ > H₂SO₄

b) H₂SO₄ > H₃PO₃ > CH₃COOH

c) H₃PO₃ > H₂SO₄ > CH₃COOH

d) CH₃COOH > H₂SO₄ > H3PO3

Question : 20 [IAS (Pre) 2001]

An aqueous solution of copper sulphate is acidic in nature because the salt undergoes.

a) Electrolysis

b) Hydrolysis

c) Dialysis

d) Photolysis