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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