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The purest form of water is:
The main constituent of biogas is:
Aspirin is chemically known as:
The most abundant element in the human body is:
Which of the following is not a greenhouse gas?
Wax used for making candle is chemically a mixture of:
Litmus is obtained from:
Vinegar made by fermentation from cane sugar contains:
Photooxidation process is initiated by:
Which one of the following is used in large quantities in Cement Industry?
Ultraviolet radiation striking the earth is due to the depletion of:
Major gaseous pollutant of the thermal power station is:
The process of removing calcium and magnesium from hard water is known as:
The tip of the match-stick contains:
Match the following:
Commercially, sodium bicarbonate is known as:
An emulsifier is an agent which:
Mortar is a mixture of water, sand and:
Carbon monoxide is an inflammable gas. Which one of the following is also inflammable?
Which one of the following metals does not react with water to produce Hydrogen?
Ozone consists of:
Which of the following liquids has the least density?
One of the constituents of tear gas is:
An atomic clock is based on transitions in:
What is the chemical name of vinegar?
Which of the following is not a property of heavy water?
Silver halides are used in photographic plates because they are:
Tetra-ethyl lead (TEL) is:
Curie point is the temperature at which:
The isotope used for the production of atomic energy is:
Which of the following is not a nucleon?
The material used in the manufacture of lead pencil is:
German silver, an alloy, does not contain the metal:
Which substance is added to make natural rubber more strong and bouncy?
The noble gas used in radiotherapy is:
The chemical(s) most commonly used for cloud seeding or ‘artificial rainmaking’ is/are:
White phosphorus is always kept under:
Sea water can be purified by the process of:
Galena is a mineral of:
Magnalium is an alloy of:
Galvanization of Iron is carried out using:
Cooking gas is a mixture of:
Dry powder fire extinguishers contain:
Which type of glass is used for making glass reinforced plastic?
Two elements which are used to absorb neutrons to control the chain reaction during nuclear fission are:
The most commonly used chemicals in artificial rainmaking or cloud seeding are:
Which of the following can be used to absorb neutrons to control the chain reaction during nuclear fission?
Hydrogen bomb is based on the principle of: