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