Chemistry The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind? 1/3 1/4 1/6 1/8 1/3 1/4 1/6 1/8 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Water is not effective in extinguishing a fire caused by petrol because The flame is too hot for water to cool it down Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn Water and petrol are miscible with each other Water and petrol react chemically The flame is too hot for water to cool it down Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn Water and petrol are miscible with each other Water and petrol react chemically ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water is Distilled water Rain water Tap water Ground water Distilled water Rain water Tap water Ground water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is found in all organic compounds Carbon Calcium Oxygen Nitrogen Carbon Calcium Oxygen Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is also known as solution ? A heterogeneous mixture A suspension A compound A homogeneous mixture A heterogeneous mixture A suspension A compound A homogeneous mixture ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of 'laughing gas' is Nitrogen pentoxide Nitrogen dioxide Nitrous oxide Nitric oxide Nitrogen pentoxide Nitrogen dioxide Nitrous oxide Nitric oxide ANSWER DOWNLOAD EXAMIANS APP
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