Chemistry Which of the following is secondary air pollutant ? NO2 Photochemical smog SO2 Dust particles NO2 Photochemical smog SO2 Dust particles ANSWER DOWNLOAD EXAMIANS APP
Chemistry The greenhouse effect is caused by the higher level of which gas in the atmosphere ? Carbon monoxide Nitrous oxide Sulphur dioxide Carbon dioxide Carbon monoxide Nitrous oxide Sulphur dioxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry When formaldehyde and potassium hydroxide are heated, we get Methane Ethyl formate Acetylene Methyl alcohol Methane Ethyl formate Acetylene Methyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Laughing gas is Nitrous oxide Nitric oxide Nitrogen pentoxide Nitrogen trioxide Nitrous oxide Nitric oxide Nitrogen pentoxide Nitrogen trioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to remove ink and rust stains on cloth? Ether Oxalic acid Alcohol Kerosene oil Ether Oxalic acid Alcohol Kerosene oil ANSWER DOWNLOAD EXAMIANS APP
Chemistry Percentage of carbon in steel ranges from 1.5 to 3.0 0.1 to 1.5 4.0 to 6.0 3.0 to 4.0 1.5 to 3.0 0.1 to 1.5 4.0 to 6.0 3.0 to 4.0 ANSWER DOWNLOAD EXAMIANS APP
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