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Chemistry Past Questions and Answers

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Chemistry Questions

Question 1146:

A characteristic reaction of the compounds with the general formula C_nH_2n is

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A Esterification
B Polymerization
C Decarboxylation
D Substitution

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Question 1147:

The pair of organic compounds that are isomers is

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A Benzene and methylbenzene
B Trichloromethane and tetrachloromethane
C Ethanol and propane
D But-1-ene and but-2-ene

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Question 1148:

A burning candle produces water and

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A Carbon (II) oxide
B Carbon (IV) oxide
C Oxygen
D Hydrogen

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Question 1149:

The gas that can best be collected by downward displacement of air is

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A Chlorine
B Sulphur (IV) oxide
C Ammonia
D Carbon (IV) oxide

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Question 1150:

Which of the following metals burn with brick red flame?

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A Pb
B Ca
C Na
D Mg

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