[Maximum number: 1]

Which row identifies a suitable starting material and reagent that can be used to produce butanenitrile?

starting material

reagent

$\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{Br}$

HCN

$\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{Br}$

NaCN

$\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{Br}$

HCN

$\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{Br}$

NaCN

[Maximum number: 1]

Which reagents and conditions would result in the formation of butanenitrile, $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CN}$ ?

A

1-bromobutane heated under pressure with ammonia in ethanol

B

1-bromopropane heated with potassium cyanide in ethanol

C

propanal heated with hydrogen cyanide in the presence of potassium cyanide

D

propanone heated with hydrogen cyanide in the presence of potassium cyanide

[Maximum number: 1]

200 mol ethanenitrile reacts with an excess of dilute sodium hydroxide. The reaction produces organic compound S and ammonia gas only.

The reaction has an 80.0% yield.
Which mass of S is produced?

A

$9.60 \mathrm{~g}$

B

$13.1 \mathrm{~g}$

C

$15.4 \mathrm{~g}$

D

$16.4 \mathrm{~g}$

Which row gives pentanenitrile as one product?

[Maximum number: 1]

Compound Y is treated with a single reagent under suitable conditions. 2-methylbutanoic acid is produced.

What could compound Y be?

A

pentan-2-one

B

2-methylbutan-2-ol

C

2-methylbutanenitrile

D

methylpropanenitrile

[Maximum number: 1]

In an experiment, $10 \mathrm{~cm}^{3}$ of an organic compound, J, in the gaseous state was sparked with an excess of oxygen. $20 \mathrm{~cm}^{3}$ of carbon dioxide and $5 \mathrm{~cm}^{3}$ of nitrogen were obtained among the products. All gas volumes were measured at the same temperature and pressure.

What could be the identity of J ?
1 $\mathrm{C}_{2} \mathrm{H}_{6} \mathrm{~N}_{2}$
2 $\mathrm{C}_{2} \mathrm{H}_{3} \mathrm{~N}$
3 $\mathrm{C}_{2} \mathrm{H}_{7} \mathrm{~N}$

A

1, 2 and 3 are correct

B

1 and 2 only are correct

C

2 and 3 only are correct

D

1 only is correct

[Maximum number: 1]

Compound W contains atoms of carbon, nitrogen and hydrogen.
Compound W reacts with HCl(aq) to produce propanoic acid.
Which row is correct?

functional group

in compound W

name of

compound W

amine

ethylamine

nitrile

ethanenitrile

amine

propylamine

nitrile

propanenitrile

[Maximum number: 1]

$38\left(\mathrm{CH}_{3}\right)_{3} \mathrm{CCN}$ reacts to form alcohol Y via the reaction sequence shown.

\left(\mathrm{CH}_{3}\right)_{3} \mathrm{CCN} \xrightarrow[\text { reaction } 1]{\mathrm{H}^{+}(\mathrm{aq})} \times \xrightarrow[\text { reaction } 2]{\mathrm{LiAlH}_{4}} \text { alcohol } Y

Which row names the molecule X and the class of alcohol Y ?

name of molecule X

class of alcohol Y

2,2-dimethylbutanoic acid

primary

3,3-dimethylbutanoic acid

tertiary

dimethylpropanoic acid

primary

dimethylpropanoic acid

tertiary

[Maximum number: 1]

$38\left(\mathrm{CH}_{3}\right)_{3} \mathrm{CCN}$ reacts to form alcohol Y via the reaction sequence shown.

\left(\mathrm{CH}_{3}\right)_{3} \mathrm{CCN} \xrightarrow[\text { reaction } 1]{\mathrm{H}^{+}(\mathrm{aq})} \times \xrightarrow[\text { reaction } 2]{\mathrm{LiAlH}_{4}} \text { alcohol } Y

Which row names the molecule X and the class of alcohol Y ?

name of molecule X

class of alcohol Y

2,2-dimethylbutanoic acid

primary

3,3-dimethylbutanoic acid

tertiary

dimethylpropanoic acid

primary

dimethylpropanoic acid

tertiary

[Maximum number: 1]

Which compounds can be used to make Y in a single-step reaction?

1 propanenitrile
2 ethanenitrile
3 propyl ethanoate
4 ethyl propanoate

A

1 and 3

B

1 and 4

C

2 and 3

D

2 and 4