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Elements
Hydrocarbons
Polymers
Salts
pH scale ranges from
pH value between 6.5-7.5 makes the soil
Philosophers wool is chemically
Photo chemical smog is a resultant of the reaction among
Piped Natural Gas (PNG) is used for
Plastic is a type of
Polythene is polymer of
Potassium Permanganate is used for purifying drinking water, because_
Power alcohol is
Pressed pellet technique for sample preparation in I.R involves the use of: