If a few drops of a concentrated acid accidentally spills over the hand of a student, what should be done?

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Important Questions on Acids, Bases and Salts

EASY

10th CBSE

IMPORTANT

NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 2 - Acids, Bases and Salts>Multiple Choice Questions (MCQs)>Q 10

Sodium hydrogen carbonate when added to acetic acid evolves a gas. Which of the following statements are true about the gas evolved?
(i) It turns lime water milky.
(ii) It extinguishes a burning splinter.
(iii) It dissolves in a solution of sodium hydroxide.
(iv) It has a pungent odour.

EASY

10th CBSE

IMPORTANT

NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 2 - Acids, Bases and Salts>Multiple Choice Questions (MCQs)>Q 11

Common salt besides being used in kitchen can also be used as the raw material for making
(i) washing soda
(ii) bleaching powder
(iii) baking soda
(iv) slaked lime

EASY

10th CBSE

IMPORTANT

NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 2 - Acids, Bases and Salts>Multiple Choice Questions (MCQs)>Q 12

One of the constituents of baking powder is sodium hydrogen carbonate, the other constituent is

EASY

10th CBSE

IMPORTANT

NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 2 - Acids, Bases and Salts>Multiple Choice Questions (MCQs)>Q 13

To protect tooth decay we are advised to brush our teeth regularly. The nature of the toothpaste commonly used is

EASY

10th CBSE

IMPORTANT

NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 2 - Acids, Bases and Salts>Multiple Choice Questions (MCQs)>Q 14

Which of the following statements is correct about an aqueous solution of an acid and a base?
(i) Higher the pH, stronger the acid
(ii) Higher the pH, weaker the acid
(iii) Lower the pH, stronger the base
(iv) Lower the pH, weaker the base

EASY

10th CBSE

IMPORTANT

NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 2 - Acids, Bases and Salts>Multiple Choice Questions (MCQs)>Q 15

The pH of the gastric juices released during digestion is

EASY

10th CBSE

IMPORTANT

NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 2 - Acids, Bases and Salts>Multiple Choice Questions (MCQs)>Q 16

Which of the following phenomena occur, when a small amount of acid is added to water?

(i) Ionisation

(ii) Neutralisation