Which of the following is/are methods of preparation of acids?

Neutralising a soluble acid with a soluble base (alkali)

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Action of acidic oxides with waters

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Mixing solutions of two soluble compounds

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Oxidation of non-metal with oxy acids

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Solution

The correct options are
B Action of acidic oxides with waters
D Oxidation of non-metal with oxy acids
If an oxide upon reaction with water produces acid is called acidic oxide.
All nonmetals form covalent oxides with oxygen, which react with water to form acids or with bases to form salts.

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Similar questions

The following is a list of methods for the preparation of salts.

A - direct combination of two elements.

B - reaction of a dilute acid with a metal.

C - reaction of a dilute acid with an insoluble base.

D - titration of a dilute acid with a solution of soluble base.

E - reaction of two solutions of salts to form a precipitate.

Choose from the above list A to E, the best method of preparing the following salts by giving a suitable equation in each case :

1. Anhydrous ferric chloride, 2. Lead chloride,

3. Sodium sulphate, 4. Copper sulphate.

Write the balanced equations for the preparation of the following salts in the laboratory :

(a) A soluble sulphate by the action of an acid on an insoluble base,

(b) An insoluble salt by the action of an acid on another salt,

(d) A soluble sulphate by the action of an acid on a metal.

N H_{3}

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