Geometrical isomers can exist for:

• CH₃CH(CH₃)CH₂CH₂CH₃

• CH₃CH=CH.CH₃

• CH₃CH=CH₂

• ClH₂C-CH₂Cl

262.

Which of the following will have a meso-isomer also?

• 2-chlorobutane

• 2,3-dichlorobutane

• 2,3-dichloropentane

• 2-hydroxypropanoic acid

In this reaction

CH₃CHO + HCN → CH₃CH(OH)CN $\stackrel{\mathrm{H}.\mathrm{OH}}{\to }$ CH₃CH(OH)COOH

an asymmetric centre is generated. The acid obtained would be

• 50% D + 50% L-isomer

• 20% D + 80% L-isomer

• D-isomer

• L-isomer

According to IUPAC nomenclature sodium nitroprusside is named as

• sodium pentacyanonitrosyl ferrate (II)

• sodium pentacyanonitrosyl ferrate (III)

• sodium nitroferricyanide

• sodium nitroferrocyanide

CH₃CH₂OH and CH₃OCH₃ are the examples of

• chain isomerism

• functional isomerism

• position isomerism

• metamerism

In the following reaction

RCH₂COOH $\stackrel{{\mathrm{Br}}_2/ \mathrm{P}}{\to } \mathrm{X} \stackrel{\mathrm{excess} {\mathrm{NH}}_3}{\to }$ Y

The major maounts of X and Y are

• RCHBrCONH₂; RCH(NH₂)COOH

• RCHBrCOOH; RCH(NH₂)COOH

• RCH₂COBr; RCH₂COONH₄

• RCHBrCOOH; RCH₂CONH₂

Naphthalene can be easily purified by

• sublimation

• crystallisation

• distillation

• vaporisation

The monosaccharides having anomeric carbon atom are

• geometrical isomers

• α- and β- optical isomers

• having symmetrical carbon atoms

• None of the above

Which of the following will be easily nitrated?

• 

• 

• CH₃NO₂

• C₆H₅NO₂

In Kjeldahl's method of estimation of nitrogen, CuSO₄ acts as

• oxidising agent

• reducing agent

• catalytic agent

• hydrolysis agent