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12th Standard English Medium Chemistry Subject Organic Nitrogen Compounds Creative 2 Mark Questions with Solution Part - II

Published on: 21/06/2021

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Std: 12th Standard - Chemistry

chapter: - Creative Questions

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Questions:

Generic 2

5 x 2 = 10

In the given set of reactions, 2 bromopropane \(\xrightarrow [ \triangle ]{ Alc.AgCN } \ 'X'\underrightarrow { { LiAlH }_{ 4 } } 'Y'\). Identify the product Y and give its IUPAC name.

Give any two uses of nitrobenzene.

Write the uses of nitro alkanes.

What is 'spirit of nitre'? Give its use.

Convertmethylisocyanide ⟶ dimethylamine

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Answers Key:

Generic 2

5 x 2 = 10

(i) Nitrobenz-ene is used to produce lubricating oils in motors and machinery.
(ii) It is used in the manufacture of dyes, drugs, pesticides, synthelic rubber, aniline and explosives like TNT, TNB.

Nitroalkanes:
(i) Nitromethane is used as a fuel for cars
(ii) Chloropicrin (CCI₃NO₂) is used as an insecticide
(iii) Nitroethane is used as a fuel additive and precursor to explosive and they are good solvents for polymers, cellulose ester, synthetic rubber and dyes etc.,
(iv) 4% solution of ethylnitrite in alcohol is known as sweet spirit of nitre and in used as diuretic.

4% solution of ethylnitrite in alcohol is known as sweet spirit of nitre and in used as diuretic.

Reduction: When reduced catalytically (or) by nascent hydrogen, they give secondary amines.
\(\underset { Methyl\quad isocyanide }{ { CH }_{ 3 }-NC+4[H] } \xrightarrow [ (or)Ni/{ H }_{ 2 } ]{ Na/{ C }_{ 2 }{ H }_{ 5 }OH } \underset { Dimethylamine }{ { CH }_{ 3 }-NH-{ CH }_{ 3 } } \)