An organic compound which produces a bluish-green coloured flame on heating in presence of copper is:

chlorobenzene

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benzaldehyde

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anlline

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benzoic acid

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Solution

The correct option is A chlorobenzene
An organic compound which produces a bluish green flame when heated on a copper wire is chlorobenzene. This is called Beilstein's test and this test is used to defect the presence of halogen in an organic compound. Green colour of the flame is due to formation of copper halide..

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