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Question 6: Mark ‘T’ if the statement is true and ‘F’ if it is false: (i) Nitric acid turns red litmus blue. (T/F) (ii) Sodium hydroxide turns blue litmus red. (T/F) (iii) Sodium hydroxide and hydrochloric acid neutralise each other and form salt and water. (T/F) (iv) Indicator is a substance which shows different colours in acidic and basic solutions. (T/F) (v) Tooth decay is caused by the presence of a base. (T/F)

Question 6: Mark ‘T’ if the statement is true and ‘F’ if it is false:
(i) Nitric acid turns red litmus blue. (T/F)
(ii) Sodium hydroxide turns blue litmus red. (T/F)
(iii) Sodium hydroxide and hydrochloric acid neutralise each other and form salt and water. (T/F)
(iv) Indicator is a substance which shows different colours in acidic and basic solutions. (T/F)
(v) Tooth decay is caused by the presence of a base. (T/F)

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 8741 Points
one month ago
Answer:(i) Nitric acid turns red litmus blue. (F) (ii) Sodium hydroxide turns blue litmus red. (F) (iii) Sodium hydroxide and hydrochloric acid neutralise each other and form salt and water. (T) (iv) Indicator is a substance which shows different colours in acidic and basic solutions. (T) (v) Tooth decay is caused by the presence of a base. (F)

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