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

Arc process of nitric acid manufacture is economical as compared to 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)
About 90% of nitric acid is manufactured by Ostwald

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Chemical Process
DDT stands for

Diphenyl-dichloro-trichloromethane
Diethyl-diphenyl-trichloromethane
Dichloro-diphenyl-trichloroethane
Dichloro-diphenyl-trichloromethane

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