Chemistry Past Questions

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3846

Biotechnology is applied in the?

A. treatment of sewage
B. treatment of water
C. purification of chemicals
D. purification of metals

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3847

which of the following organic compounds has the lowest boiling point?

A. C\(_6\)H\(_14\)
B. C\(_5\)H\(_12\)
C. C\(_4\)H\(_10\)
D. ( CH\(_3\) )\(_3\)

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3848

Consider the following reaction represented by the following equation: C\(_2\)H\(_2\) \(^{H\(_2\)}_{→}\) X \(^{H\(_2\)}_{→}\) Y. X and Y respectively are?

A. ethane and ethene
B. ethene and ethane
C. ethyne and ethene
D. ethane and ethyne

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3849

Which of the following substances can be classified as heavy chemicals?

A. CaOCl\(_2\)
B. H\(_2\)SO\(_4\)
C. AgNO\(_3\)
D. CaO

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3850

in Boyle's law?

A. T is constant, P varies directly with V
B. P is constant, V varies inversely with T
C. V is constant, P varies directly with T
D. T is constant, V varies inversely with P

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