Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Nitrogen Hydrogen Helium Methane Nitrogen Hydrogen Helium Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxygen has (+) oxidation number only in OF2 C12O H2O (2) N2O OF2 C12O H2O (2) N2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry Pyrethrin used in mosquito coil is obtained from A bacterium An insect A seed plant A fungus A bacterium An insect A seed plant A fungus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a natural source of hydrocarbon? Natural Gas Petroleum Mica Coal Natural Gas Petroleum Mica Coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Rusting of iron takes place due to Oxidation Carbonation Exfoliation Corrosion Oxidation Carbonation Exfoliation Corrosion 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. Both A and R is true and R is the correct explanation of A A is false but R is true Both A and R is true but R is not a correct explanation of A A is true but R is false Both A and R is true and R is the correct explanation of A A is false but R is true Both A and R is true but R is not a correct explanation of A A is true but R is false ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS