JEE Mains 29-July-2022 Shift 2 Solved Paper

Section: Chemistry

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Question : 68 of 90

Marks: +1, -0

Portland cement contains ' X ' to enhance the setting time. What is ' X '?

[29-Jul-2022-Shift-2]

CaSO4⋅‌
1
2
H2O
CaSO4⋅2H2O
CaSO4
CaCO3

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