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Reaction of Acids and Bases with Metals

Mercury react...

Question

Mercury reacts with sodium hydroxide to give hydrogen gas and :

A

mercuric oxide

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B

mercuric hydroxide

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C

mercuric dihydrogenate

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D

the above statement is incorrect

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Solution

The correct option is C the above statement is incorrect
Mercury does not react with any alkalis under normal conditions. Hence, the above statement is incorrect as there will be no reaction at all.

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Similar questions

Q. Statement I:- Hydrogen gas is not evolved when zinc reacts with cold water.

Statement II:- Sodium reacts vigorously with cold water to produce sodium hydroxide and hydrogen gas.

Q. Give equations for the following conversions:
(i) Sodium to sodium hydroxide using water.
(ii) Steam to hydrogen using burning magnesium.
(iii) Dilute sulphuric acid to hydrogen using zinc.
(iv) Mercuric oxide to mercury.
(v) Silver oxide to silver.
(vi) Copper hydroxide to copper oxide.
(vii) Calcium hydroxide to calcium oxide.
(viii) Lead carbonate to lead.
(ix) Potassium nitrate to oxygen.
(x) Copper nitrate to nitrogen dioxide.
(xi) Mercuric nitrate to mercury.
(xii) Silver nitrate to silver.

Q. Identify the reactants and products from the word equation :
Phosphorous + Oxygen

\to

Phosphorus pentaoxide
Aluminium + Nitrogen

\to

Aluminium nitride
Copper carbonate

\to

Copper oxide + Carbon dioxide
Sodium + Water

\to

Sodium hydroxide + hydrogen
Mercuric oxide

\to

Mercury + oxygen

Q. Translate the following statements into chemical equations and balance them:

Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.

Translate the statement into chemical equation and then balance:

Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.

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