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Chemistry

Chemistry
Hard water and soft water can be distinguished by using

Liquid soap
Detergent
Dilute acid
Ordinary soap

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Chemistry
Electric fuse is an alloy of

Carbon and tin
Copper and iron
Zinc and lead
Tin and lead

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Chemistry
Match the List-I with List-II and select the correct answer using the codes given belowList-I (Vitamin)List-II(Chemical compound)F.Vitamin A1.ThiaminG.Vitamin B12.RetinolH.Vitamin C3.Ascorbic acidJ.Vitamin E4.TocopherolCodes :FGHJA.4132B.2314C.4312D.2134

A
B
C
D

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Chemistry
Which of the following is not a method of preparing oxygen?

Decomposition of potassium permanganate
Decomposition of manganese dioxide
Fractional distillation of liquid air
Electrolysis of water

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Chemistry
Williamson's synthesis is widely used in the laboratory preparation of

Aldehydes
Alcohols
Ethers
Esters

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Chemistry
In the electroplating of gold, the electrolyte used is

Gold sulphate
Potassium aurocyanide
Gold chloride
Gold nitrate

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MORE MCQ ON Chemistry

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