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Calcination

The process w...

Question

The process which removes volatile impurities from calamine is called calcination.

A

True

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B

False

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Solution

The correct option is A True
Calamine is a historic name for an ore of zinc. When calamine, is subjected to calcination, zinc oxide is formed and carbon dioxide is liberated. Calcination is used to remove volatile impurities from the ore.

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Q. The process which removes volatile impurities from calamine is:

State the given statement is true or false.

Statement: In calcination and roasting, volatile impurities are removed.

Q. Calcination is a process in which the ore is heated strongly in the absence of air to remove volatile impurities. It thermally decomposes the carbonate.

A l_{2} O_{3} . 2 H_{2} O C a l c i n a t i o n - ------ \to B + 2 H_{2} O

The name of product

B

Q. Calcination is a process in which the ore is heated strongly in the absence of air to remove volatile impurities. It thermally decomposes the carbonate.

A C a l c i n a t i o n - ------ \to C a O + M g O + 2 C O_{2}

Q. Calcination is a process in which the ore is heated strongly in the absence of air to remove volatile impurities. It thermally decomposes the carbonate.

A l_{2} O_{3} . 2 H_{2} O C a l c i n a t i o n - ------ \to B + 2 H_{2} O

The name of product

B

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