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 Chemistry Questions

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Q:

Which of the following has pH value 7?

A) Pure Water B) H2SO4
C) Sodium Carbonate D) HCl
 
Answer & Explanation Answer: A) Pure Water

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Q:

Terylene is a condensation polymer of ethylene glycol and which acid?

A) Benzoic Acid B) Salicylic acid
C) Phthalic acid D) Terephthalic acid
 
Answer & Explanation Answer: D) Terephthalic acid

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Q:

Which one of the following non­metals shows allotropy in the liquid state?

A) Carbon B) Sulphur
C) Phosphorous D) Bromine
 
Answer & Explanation Answer: B) Sulphur

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Q:

The poisonous gas accidentally released in Bhopal Gas Tragedy is

A) Methane B) Nitrous Oxide
C) Methyl Isocyanate D) Cyanogen
 
Answer & Explanation Answer: C) Methyl Isocyanate

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Q:

The common name of dichlorodifluoromethane is _____.

A) galena B) Freon
C) gypsum D) borax
 
Answer & Explanation Answer: B) Freon

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Q:

Which among the following is false about natural rubber?

A) It is an elastomer B) It is a monomer of cis­isoprene
C) Natural rubber is a polymer of chloroprene D) It is heated with sulphur compounds to improve its properties
 
Answer & Explanation Answer: B) It is a monomer of cis­isoprene

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Q:

Which of the following elements has the lowest melting point?

A) Iodine B) Lead
C) Tin D) Mercury
 
Answer & Explanation Answer: D) Mercury

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Q:

Which of the following can undergo sublimation?

A) Ammonium chlorate B) Ammonium sulphate
C) Ammonium chloride D) Ammonium sulphide
 
Answer & Explanation Answer: C) Ammonium chloride

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