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What is the general formula for haloalkanes? (X=halogen atom, n = 1, 2, 3…)

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What is the general formula for haloalkanes? (X=halogen atom, n = 1, 2, 3…)

(a) CnH2nX

(b) CnH2n+1X

(c) CnH2n-1X

(d) CnH2n-3X

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The question is from Haloalkanes Classification topic in division Haloalkanes and Haloarenes of Chemistry – Class 12

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Right choice is (b) CnH2n+1X

The explanation: The general formula for haloalkanes is CnH2n+1X where X is a halogen atom and n = 1, 2, 3… The formulae CnH2n-1X and CnH2n-3X are that of haloalkenes and haloalkynes respectively.

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