Nitrogen Compounds

Skeletal formulae of four organic compounds are shown.

Which two compounds when separately heated with dilute sulfuric acid produce propanoic acid as one of the products?

Options

A   1 and 2
B   1 and 4
C   2 and 3
D   3 and 4

Compound W contains atoms of carbon, nitrogen and hydrogen.

Compound W reacts with $\text{HCl}(\text{aq})$ to produce propanoic acid.

Which row is correct?

Options

$0.200\text{ mol}$ 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?

Options

A   $9.60\text{ g}$
B   $13.1\text{ g}$
C   $15.4\text{ g}$
D   $16.4\text{ g}$

An amine is produced in the following reaction.

$$\text{C}_2\text{H}_5\text{I} + 2\text{NH}_3 \rightarrow \text{C}_2\text{H}_5\text{NH}_2 + \text{NH}_4\text{I}$$

What is the mechanism?

Options

A   electrophilic addition
B   free-radical substitution
C   nucleophilic addition
D   nucleophilic substitution

The reaction shown can be used to lengthen a carbon chain.

$$\text{CH}_3\text{CH}_2\text{CH}_2\text{Br} + \text{CN}^- \rightarrow \text{CH}_3\text{CH}_2\text{CH}_2\text{CN} + \text{Br}^-$$

Which row shows the correct reagent and conditions for this reaction?

Options

Separate samples of 1-bromopropane are used in two different reactions.

reaction 1: 1-bromopropane is converted into compound X by heating it under pressure with ammonia in ethanol.

reaction 2: 1-bromopropane is converted into compound Y. Compound Y undergoes hydrolysis to form butanoic acid.

Which row identifies compound X and describes the reagents used in reaction 2 to make compound Y?

Options

Three mixtures are heated under reflux.

Which mixtures will produce sodium propanoate as one product?

1. $\text{CH}_3\text{CH}_2\text{CHO} + \text{NaBH}_4(\text{aq})$
2. $\text{CH}_3\text{CH}_2\text{CH}_2\text{OH} + \text{Na}(\text{s})$
3. $\text{CH}_3\text{CH}_2\text{CN} + \text{NaOH}(\text{aq})$

Options

A   1, 2 and 3
B   1 and 2 only
C   2 and 3 only
D   3 only

Which reaction mixture produces a nitrile?

Options

A   halogenoalkane with KCN in ethanol
B   halogenoalkane with $\text{NH}_3$ in ethanol
C   ketone with 2,4-DNPH
D   carboxylic acid with $\text{NH}_3$ in water

Butylamine can be produced by the reaction of butanenitrile with hydrogen in the presence of a suitable catalyst.

Which volume of hydrogen, measured at room conditions, is required to react completely with $0.500\text{ g}$ of butanenitrile?

Options

A   $145\text{ cm}^3$
B   $174\text{ cm}^3$
C   $289\text{ cm}^3$
D   $348\text{ cm}^3$

Three mixtures are heated under reflux.

Which mixtures will produce sodium propanoate as one product?

1. $\text{CH}_3\text{CH}_2\text{CHO} + \text{NaBH}_4(\text{aq})$
2. $\text{CH}_3\text{CH}_2\text{CH}_2\text{OH} + \text{Na}(\text{s})$
3. $\text{CH}_3\text{CH}_2\text{CN} + \text{NaOH}(\text{aq})$

Options

A   1, 2 and 3
B   1 and 2 only
C   2 and 3 only
D   3 only