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Chemistry

Chemistry
Philosopher’s wool is chemically

Magnesium oxide
Calcium oxide
Zinc oxide
Aluminium oxide

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Chemistry
Hard water and soft water can be distinguished by using

Dilute acid
Liquid soap
Ordinary soap
Detergent

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Chemistry
Match the List-I with List-II and select the correct answer using the codes given below the listsList-I (Green house gas)List-II(Major source)F.Carbondioxide1.Enteric fermentation in cattleG.Methane2.Burning of fossilH.Chloroflro carbons3.Mercury compounds in waste waterJ.Nitrous oxide4.Nylon production 5.Air conditioner and refrigeration unitsCodes :FGHJA.2154B.3421C.3241D.1234

C
B
D
A

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Chemistry
The laws of electrolysis are given by

Ostwald
Arrhenius
Faraday
Lewis

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Chemistry
An emulsion is a colloid of a

Gas in a liquid
Liquid in a gas
Gas in a solid
Liquid in a liquid

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Chemistry
One carat of diamond is equal to

100 mg
200 mg
150 mg
250 mg

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