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Assertion : Absence of blood red coloura...

Assertion : Absence of blood red colouration, during the Lassaigne's test for nitrogen definitely shows the absence of sulphur in the organic compound.
Reason : Organic compounds containing both nitrogen and sulphur will necessarily give blood red colouration during the Lassaigne's test for nitrogen.

A

Both assertion and reason are true and reason is the correct explanation of assertion

B

Both assertion and reason are true and reason is not the correct explanation of assertion

C

Assertion is true and reason is false

D

Both assertion and reason are false

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