Chemical Process
Shrinkage volume in cement setting does not depend upon the

Sand to cement ratio
Drying period
Ambient temperature fluctuation
Water to cement ratio

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Chemical Process
Pick out the wrong statement pertaining to nitric acid.

Arc process of nitric acid manufacture is economical as compared to Ostwald
About 90% of nitric acid is manufactured by Ostwald
It is a strong mono basic acid which reacts with almost all the metals except noble metals
Yellow color of impure nitric acid is because of dissolved oxides of nitrogen (mainly NO₂)

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