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JEE CHEMISTRY MCQ: ORGANIC CHEMISTRY-SOME BASIC PRINCIPLES AND TECHNIQUES

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Which of the following element(s) is/are confirmed by appearance of blood red colour with

\mathrm{FeCl}_3

in Lassaigne's test?

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Correct option: B

Presence of

\mathrm{N} \,\&\, \mathrm{S}

Option B is correct because the appearance of a blood-red color with FeCl3 in Lassaigne's test indicates the presence of both nitrogen and sulfur, forming [Fe(SCN)]2+.

More Questions from ORGANIC CHEMISTRY-SOME BASIC PRINCIPLES AND TECHNIQUES

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Keto-enol tautomerism is not observe in How many isomers of

{C_5}{H_{11}}OH

will be primary alcohols? Which statement is true? Common reactions of benzene and its derivatives are: How many structural formulae are possible for

{\mathrm{C}_5}{\mathrm{H}_{11}}\mathrm{Cl}?

Assertion (A): The compounds that have the same constitution and sequence of covalent bonds but differ in relative positions of their atoms or groups in space are called stereoisomers.

Reason (R): Stereoisomerism is a special type of isomerism which can be classified as geometrical and optical isomerism