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)

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Solution

(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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Similar questions

Mark ‘T’ if the statement is true and ‘F’ if it is false

(i) Nitric acid turn red litmus blue. (T/F)

(ii) Sodium hydroxide turns blue litmus red. (T/F)

(iii) Sodium hydroxide and hydrochloric acid neutralize 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 (ii)
Mark ‘T’ if the statement is true and ‘F’ if it is false:

(ii) Sodium hydroxide turns blue litmus red.

Question 6 (i)
Mark ‘T’ if the statement is true and ‘F’ if it is false:

(i) Nitric acid turn red litmus blue.

Question 6 (iii)
Mark ‘T’ if the statement is true and ‘F’ if it is false:

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

Q. Write True (T) or False (F) against the following statements in the given brackets:
1. Acids corrode metals. ( )
2. Distilled water is a neutral substance. ( )
3. Sodium hydroxide turns blue litmus red. ( )
4. The stings of bees contain an acid. ( )
5. Milk of magnesia is used in antacids. ( )

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