Fill in the blanks in the following sentences :
(a) Acids have a _______ taste and they turn _______ litmus to _______.
(b) Substances do not show their acidic properties without _______.
(c) Acids produce _______ ions on dissolving in water.
(d) Those substances whose smell (or odour) changes in acidic or basic solutions are called _______ indicators.
(e) Onion and vanilla extract are _______ indicators.

(a) Acids have a sour taste and they turn blue litmus to red.

(b) Substances do not show their acidic properties without water.

(c) Acids produce hydrogen ions on dissolving in water.

(d) Those substances whose smell (or odour) changes in acidic or basic solutions are called olfactory indicators.

(e) Onion and vanilla extract are olfactory indicators.

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Updated on: 10-Oct-2022

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