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Aqua regia is a freshly prepared mixture of concentrated hydrochloric acid and concentrated nitric acid in the ratio of 3:1.

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Important Questions on Metals and Non-metals

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Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties
Which one of the following is the copper mine situated in Rajasthan?
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Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties
The mixture of three parts of concentrated HCl and one part of concentrated HNO3 is reacted with gold metal. The main products of reaction are
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Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties
Which one of the following minerals is not used in making cement?
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Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties
Which of the following is a leading producer of copper in the world?
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Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties

Khetri mines of Rajasthan is famous for which metallic minerals?

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Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties
Stainless steel is mainly an alloy of
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Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties
Lead oxide (PbO) can be dissolved in
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Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties
Balaghat mines is in
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Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties

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A, B and C, respectively are

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Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties
Metals are ductile. The statement means that metals can be 
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Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties
Which metal is powdered, suspended in oils as a paint for mirrors?
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Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties
Which of the following compounds is most sensetive of light?
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Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties
For prevention of rusting of iron, which is used in paints?
MEDIUM
Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties
Unstable lead compounds are
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Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties

Spitting of silver refers to

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Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties
Aluminium deposited as vapour on glass forms a good mirror, essentially because:
HARD
Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties
The process in which metal oxide is reduced to metal is called:
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Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties
Cotyledons are also called-
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Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties
When dry silver chloride is fused with sodium carbonate, we get pure :
MEDIUM
Science>Chemistry>Metals and Non-metals>Some Important Metals and their Properties
Aluminium is more reactive than iron, but aluminium is less easily corroded than iron because: