Chemistry Which one of the following is most acidic MgO Al22O3 Na2O CaO MgO Al22O3 Na2O CaO ANSWER DOWNLOAD EXAMIANS APP
Chemistry An important green-house gas other than methane being produced from the agricultural fields is Nitrous oxide Ammonia Arsine Sulphur dioxide Nitrous oxide Ammonia Arsine Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sweat contains water and ________ Vinegar Salt Citric acid Lactic acid Vinegar Salt Citric acid Lactic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Metal are good conductors, because They contain reflecting surface The molecules in them are very close to each other The molecules in them collide very freely They contain free electrons They contain reflecting surface The molecules in them are very close to each other The molecules in them collide very freely They contain free electrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Assertion (A) : Synthetic detergents can lather wen in hard water.Reason (R) : Synthetic detergents form soluble calcium and magnesium salts with hard water. A is true but R is false Both A and R is true but R is not a correct explanation of A A is false but R is true Both A and R is true and R is the correct explanation of A A is true but R is false Both A and R is true but R is not a correct explanation of A A is false but R is true Both A and R is true and R is the correct explanation of A ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brass gets discoloured in air due to constant exposure in presence of: Hydrogenated wafers Hydrogen sulphide Aluminium phosphide Aluminium sulphide Hydrogenated wafers Hydrogen sulphide Aluminium phosphide Aluminium sulphide ANSWER DOWNLOAD EXAMIANS APP
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