Gold is alloyed with which metal to make it harder?

C u

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H g

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A g

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C

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Solution

The correct options are
A $A g$
C $C u$
For most uses of gold the pure metal is too soft on its own and is hardened by the addition of alloying elements,copper,silver ,nickel, palladium and zinc.

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Similar questions

Q. (a) How does the painting of an iron object prevent its rusting?
(b) How does the electrical conductivity of copper alloys, brass and bronze, differ from that of pure copper?
(c) What is meant by 22 carat gold? Name the metals which are usually alloyed with gold to make it harder.

Assertion:- An alloy of gold with copper or silver is used to make ornaments.

Reason:- Pure gold is soft due to which it cannot be not used to make ornaments.

Q. An aqueous solution containing one mole per litre of each

C u (N O_{3})_{2}, A g N O_{3}, H g_{2} (N O_{3})_{2}

and

M g (N O_{3})_{2}

, is being electrolysed by using inert electrodes. The values of standard electrode potentials in volts (reduction potentials) are

A g / A g^{+} = + 0.80, 2 H g / H g_{2}^{2 +} = + 0.79, C u / C u^{2 +} = + 0.34, M g / M g^{2 +} = - 2.37

with increasing voltage, the sequence of deposition of metals on the cathode will be

A solution containing 1 mol per litre of each $C u (N O_{3})_{2}, A g N O_{3},$ and $H g_{2} (N O_{3})_{2}$ is being electrolyzed by using inert electrodes. The values of standard electrode potentials in volts (reduction potential) are
$A g | A g^{⨁} = + 0.80, 2 H g | H g_{2}^{2 +} = + 0.79$
$C u | C u^{2 +} = + 0.34, M g | M g^{2 +} = - 2.37$
with increasing voltage, the sequence of deposition of metals at the cathode will be
(IIT-JEE, 1984)

Which of the following metals should be chosen to react with $C u S O_{4}$ solution to make its color disappear?

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Gold is alloyed with which metal to make it harder?

The correct options are A Ag C CuFor most uses of gold the pure metal is too soft on its own and is hardened by the addition of alloying elements,copper,silver ,nickel, palladium and zinc.

The correct options are
A $A g$
C $C u$
For most uses of gold the pure metal is too soft on its own and is hardened by the addition of alloying elements,copper,silver ,nickel, palladium and zinc.