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Rain water
Lake water
River water
Sea water
The purest form of water is
The quality of petrol is expressed in terms of
The radioactive element that occurs abundantly in India and can be used in place of uranium in nuclear power plants is
The reaction which converts sugar solution into alcohol is an example of
The refrigerant commonly used for domestic refrigerators is
The Refrigerant FREON is
The residue left after extracting juice from sugarbeet & sugarcane is called
The segment of a myofibril that is called a sarcomere runs from
The shape of a carbon molecule is
The smog is essentially caused by the presence of