Question

Que-3 One word answer
(a) The moving air is called - ________________
(b) Acid turns blue litmus - _______________
(C) Substances which are neither acidic nor basic are called-________
(d) A device used for measuring temperature-___________
(e) The normal temperature of the human body is-___________​

Answer 1

Answer:

(i) Nitric acid turns red litmus blue. False

(ii) Sodium hydroxide turns blue litmus red. False

(iii) Sodium hydroxide and hydrochloric acid neutralise each other and form salt and water. True

(iv) Indicator is a substance which shows different colours in acidic and basic solutions. True

(v) Tooth decay is caused by the presence of a base. False

Explanation:

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Answer 2

Answer:

1.wind

2.red

3.neutral substances.

4.thermometer

5.98.6f