Role of gypsum, CaSO _{4} · 2 H _{2} O in setting of cement? Identify correct option from following

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General Principles and processes of Isolation of Elements

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What is the role of gypsum, $CaSO _{4} \cdot 2 H _{2} O$ in setting of cement? Identify the correct option from the following

A

to slow down the setting process

B

to fasten the setting process

C

to provide water molecules for hydration process

D

to help to remove water molecules

(NEET-2020)

Solution

The purpose of adding gypsum is only to slow down the process of setting of cement, so that it gets sufficient hardened.

Standard 12

Chemistry

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