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6. 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 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)



6. 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 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:upto college level

1 Answers

Shane Macguire
30 Points
10 years ago

(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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