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Oxides of Group 16

In the end of...

Question

In the end of manufacturing of cement which powder is mixed with the clinkers.

A

Gypsum powder

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B

Magnesium powder

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C

Alumina powder

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D

None of the above

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Solution

The correct option is A Gypsum powder
In the end of manufacturing of cement, gypsum powder is mixed with the clinkers.Gypsum is calcium sulphate dihydrate $C a S O_{4} \cdot 2 H_{2} O$

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Q. Assertion :Gypsum is added to powdered clinkers to get cement. Reason: Addition of gypsum to clinker decreases its setting time and thus cement hardens readily on mixing with water.

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Q. For the manufacture of cement various steps are given below. Arrange the steps in a proper sequence.

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