The process of removing calcium and magnesium from hard water is known as Filtration Flocculation Water softening Sedimentation TRUE ANSWER : ? YOUR ANSWER : ?
Ferrous sulphate is used in water treatment as a/an Adsorbent Oxidizing agent Reducing agent Coagulant aid TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is used to denature ethanol ? Propyl alcohol Phenol Methane Methyl alcohol TRUE ANSWER : ? YOUR ANSWER : ?
One of the following is used to dissolve noble metals. That is Nitric acid Hydrochloric acid Aqua ragia Sulphuric acid TRUE ANSWER : ? YOUR ANSWER : ?
Impure camphor is purified by Fractional crystallisation Fractional distillation Sublimation Steam distillation TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not a derivative of barbituric acid Amytal Nembutal Veronal Equanil TRUE ANSWER : ? YOUR ANSWER : ?
Williamson's synthesis is widely used in the laboratory preparation of Ethers Esters Aldehydes Alcohols TRUE ANSWER : ? YOUR ANSWER : ?
The common name of sodium bicarbonate is Baking soda Soda lime Baking powder Soda ash TRUE ANSWER : ? YOUR ANSWER : ?
The unit to measure the flow of water is Micro Mho Milli curie Ohm meter Cusecs TRUE ANSWER : ? YOUR ANSWER : ?
Which one of the following is not a ‘green house gas’ ? Methane Nitrogen Chlorofluorocarbons Carbon dioxide TRUE ANSWER : ? YOUR ANSWER : ?