Chemistry Water is not effective in extinguishing a fire caused by petrol because Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn Water and petrol react chemically The flame is too hot for water to cool it down Water and petrol are miscible with each other Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn Water and petrol react chemically The flame is too hot for water to cool it down Water and petrol are miscible with each other ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a derivative of barbituric acid Amytal Equanil Veronal Nembutal Amytal Equanil Veronal Nembutal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphur dioxide level in the atmosphere can be reduced by using Low - sulphur fuels Static electricity to attract it in factory chimneys More efficient car engines Catalytic converters in industry Low - sulphur fuels Static electricity to attract it in factory chimneys More efficient car engines Catalytic converters in industry ANSWER DOWNLOAD EXAMIANS APP
Chemistry The value of gas constant R in Ergs deg–1 mole–1 is 8.413 × 107 8.314 × 107 4.183 × 107 8.341 × 107 8.413 × 107 8.314 × 107 4.183 × 107 8.341 × 107 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Warming Ammonium chloride with sodium hydrochloride in a test tube is an example of Closed system Open system Isothermal system Isobaric system Closed system Open system Isothermal system Isobaric system ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a cause for present global warming and climate change ? Carbondioxide emission CFC emission Methane emission Deforstation Carbondioxide emission CFC emission Methane emission Deforstation ANSWER DOWNLOAD EXAMIANS APP
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