Chemistry The gas that causes suffocation and death when coal or coke is burnt in a closed room is Ethane Carbon di-oxide Methane Carbon monoxide Ethane Carbon di-oxide Methane Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The addition of gypsum to portland cement helps in : Reduction in the cost of cement Increasing the strength of cement Rapid setting of cement Preventing rapid setting of cement Reduction in the cost of cement Increasing the strength of cement Rapid setting of cement Preventing rapid setting of cement ANSWER DOWNLOAD EXAMIANS APP
Chemistry The major harmful gas emitted by automobile vehicle which causes air pollution is Methane Ozone gas Carbon Monoxide Carbon dioxide Methane Ozone gas Carbon Monoxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Greenhouse effect is caused by Nitrogen dioxide Nitrogen Carbon dioxide Carbon monoxide Nitrogen dioxide Nitrogen Carbon dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry When formaldehyde and potassium hydroxide are heated, we get Methane Methyl alcohol Acetylene Ethyl formate Methane Methyl alcohol Acetylene Ethyl formate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas emitted by power stations causes acid rain? Helium Sulphur dioxide Carbon dioxide Nitrogen Helium Sulphur dioxide Carbon dioxide Nitrogen ANSWER DOWNLOAD EXAMIANS APP
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