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Question
Pick up the correct statement from the following:
Options:
A .  Calcium chloride acts as a retarder
B .  Gypsum (calcium sulphate) acts as an accelerator
C .  Gypsum (calcium sulphate) acts as a retarder
D .  Both (c) and (d).
Answer: Option D
Answer: (d).Both (c) and (d).

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