Chemistry The chemical used in developing photographic films is Hydroquinone Silver bromide Sodium sulphate Hypo Hydroquinone Silver bromide Sodium sulphate Hypo ANSWER DOWNLOAD EXAMIANS APP
Chemistry Main source of lead pollution is from Sewage Leaded gasoline Tobacco Insecticides Sewage Leaded gasoline Tobacco Insecticides ANSWER DOWNLOAD EXAMIANS APP
Chemistry The high reactivity of fluorine is due to its high electro negativity availability of d-orbitals small size of fluorine atom strong F - F bond its high electro negativity availability of d-orbitals small size of fluorine atom strong F - F bond 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 false but R is true Both A and R is true and R is the correct explanation of A Both A and R is true but R is not a correct explanation of A A is true but R is false A is false but R is true Both A and R is true and R is the correct explanation of A 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
Chemistry Activated Charcoal is used to remove colouring matter from pure substances by Reduction Adsorption Bleaching Oxidation Reduction Adsorption Bleaching Oxidation ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the element that is in the highest percentage in the composition of the earth ? Silicon Iron Magnesium Oxygen Silicon Iron Magnesium Oxygen ANSWER DOWNLOAD EXAMIANS APP
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