Chemistry Which one of the following metals pollutes the air of a city having large number of automobiles? Lead Cadmium Copper Chromium Lead Cadmium Copper Chromium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is a major green house gas? Carbon dioxide Carbon monoxide Chloro fluorocarbon Freon Carbon dioxide Carbon monoxide Chloro fluorocarbon Freon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gobar gas contains mainly : Methane Ethylene Propylene Acetylene Methane Ethylene Propylene Acetylene ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following can be found as pollutants in the drinking water in some parts of India? Select the correct answer using the code given below.(A) Arsenic (B) Sorbitol (C) Fluoride (D) Formaldehyde (E) Uranium A, C and E B, D and E A and C A, B, C, D and E A, C and E B, D and E A and C A, B, C, D and E ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heating of a ore below its melting point in the absence of air is known as Smelting Roasting Refining Calcination Smelting Roasting Refining Calcination ANSWER DOWNLOAD EXAMIANS APP
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