Acids contain _ ions and bases contain _ ions.

hydrogen, hydroxyl

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hydride, hydroxide

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hydroxide, hydride

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hydroxyl, hydrogen

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Solution

The correct option is A
hydrogen, hydroxyl

An acid can be defined as a compound which when dissolved in water gives hydronium ions (H₃O⁺).

An alkali (or a base) is a compound which when dissolved in water yields hydroxyl ions (OH^-) as the only negatively charged ion.

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Similar questions

Give one example in each case :

(a) A basic oxide which is soluble in water,

(b) A hydroxide which is highly soluble in water,

(d) A hydroxide which is insoluble in water,

(e) A weak mineral acid,

(f) A base which is not an alkali,

(g) An oxide which is a base,

(h) A hydrogen containing compound which is not an acid,

(i) A base which does not contain a metal ion.

p H

25^{o} C

Ammonia is a base but doesn't contain a hydroxyl group.

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