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JAMB Chemistry 2014 Paper

Question : 32

Total: 45

The general formula of haloalkanes where X represents the halide is

Solution:

Concept:

Haloalkanes are alkanes in which one hydrogen atom is replaced by a halogen atom.

Explanation:

General formula for alkanes is

\mathrm{C}_n\mathrm{H}_{2n+2}

Replacing one

\mathrm{H}

atom by one halogen atom

\mathrm{X}

reduces the number of hydrogen atoms by 1:

\mathrm{C}_n\mathrm{H}_{2n+1}\mathrm{X}

Thus, the correct general formula is

\mathrm{C}_n\mathrm{H}_{2n+1}\mathrm{X}

Answer:

\mathrm{C}_n\mathrm{H}_{2n+1}\mathrm{X}

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