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DeepanjaliEnlightened

Asked: August 3, 2021In: Chemistry

Which metal can be purified by distillation?

A. Cu B. Ag C. Fe D. Hg

DeepanjaliEnlightened

Asked: August 3, 2021In: Chemistry

Heating of pyrite ores in air to remove sulphur is known as:

A. Calcination B. Fluxing C. Smelting D. Roasting

DeepanjaliEnlightened

Asked: August 3, 2021In: Chemistry

Smelting is the reduction of oxide to metal by:

A. C B. Al C. H D. Electric current

DeepanjaliEnlightened

Asked: August 3, 2021In: Chemistry

Which is known as blister copper?

A. Pure copper B. 98 ℅ copper C. Ore of copper D. Alloy of copper

DeepanjaliEnlightened

Asked: August 3, 2021In: Chemistry

The non-fusible impurities of ores are removed by adding:

A. Flux B. Slag C. Gangue D. None

DeepanjaliEnlightened

Asked: August 3, 2021In: Chemistry

Which element is present in pitch blende:

A. U B. Ce C. Ba D. Mg

DeepanjaliEnlightened

Asked: August 3, 2021In: Chemistry

Froth floatation process for the concentration of ores is a practical application of:

A. Absorption B. Absorption C. Coagulation D. Sedimentation

DeepanjaliEnlightened

Asked: August 3, 2021In: Chemistry

Which one of the following methods should be used to obtain chlorine and hydrogen from sodium chloride?

A. Neutralisation B. Electrolysis C. Distillation D. Electroplating

DeepanjaliEnlightened

Asked: August 3, 2021In: Chemistry

Many salts absorb water from the atmosphere. This property is called ________.

A. Hydration B. Dehydration C. Deliquescence D. None of these

DeepanjaliEnlightened

Asked: August 3, 2021In: Chemistry

Cheese is an example of __________.

A. Emulsion B. Foam C. Gel D. Sol

Load More Questions

Which metal can be purified by distillation?

Heating of pyrite ores in air to remove sulphur is known as:

Smelting is the reduction of oxide to metal by:

Which is known as blister copper?

The non-fusible impurities of ores are removed by adding:

Which element is present in pitch blende:

Froth floatation process for the concentration of ores is a practical application of:

Which one of the following methods should be used to obtain chlorine and hydrogen from sodium chloride?

Many salts absorb water from the atmosphere. This property is called ________.

Cheese is an example of __________.

The Constitution of India was adopted on

Who is the President of India?

Who is the head of the state in India?

Intensity of incident radiation is made half. The stopping potential ...

What is synonyms of connect?

GBiswal

Deepanjali

Pratibha

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