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NEET UG CHEMISTRY MCQ: ORGANIC CHEMISTRY-SOME BASIC PRINCIPLES AND TECHNIQUES

1 Medium

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Analyzing +4 | -1

In Carius tube, an organic compound '

\mathrm{X}

' is treated with sodium peroxide to form a mineral acid '

Y

'.

The solution of

\mathrm{BaCl}_2

is added to '

\mathrm{Y}

' to form a precipitate '

Z

'. '

Z

' is used for the quantitative estimation of an extra element. '

\mathrm{X}

' could be

View answer and explanation

Correct option: C

Methionine

Option C (Methionine) is correct because it contains sulfur, which upon oxidation with sodium peroxide, forms sulfate ions that precipitate with barium chloride as barium sulfate.

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The number of different substitution products possible when ethane is allowed to react with bromine is sunlight are : Correct order of stability is Assertion (A) A mixture of o-nitrophenol and p-nitrophenol can be separated by steam distillation.

Reason (R)

p

-nitrophenol is steam volatile whereas onitrophenol is not steam volatile. An organic compound having carbon, hydrogen and sulphur contains 4% of sulphur. The minimum molecular weight of the compound is Increasing order of acid strength is

a) Phenol

\quad \quad

b) 3-Nitrophenol

c) 3,5-dinitro phenol

\quad

4) 2,4,6-trinitro phenol Isobutyl chloride is :