Organic Chemistry & Analysis Random Retrieval

This is the ¹H NMR spectrum of:

This is the ¹H NMR spectrum of:

Which of these molecules are polar?

(i) trans but-2-ene,

(ii) trans 1,2-dichloroethene,

(iii) cis but-2-ene,

(iv) cis 1,2-dichloroethene

Which of these reagents are nucleophiles?

(i) Br₂

(ii) NH₃

(iii) NO₂⁺

(iv) CN^-

Which of these chemical species are nucleophiles with react with halogenoalkanes?

(i) cyanide ions

(ii) hydroxide ions

(iii) ammonia molecules

(iv) ammonium ions

Step 2:

Which of these procedures is used on a large scale to recover some value from plastic waste?

(i) burning the plastic in incinerators and using the energy to generate electricity

(ii) re-melting the plastic and spinning the melt into fibres

(iii) heating the waste with catalysts but no air to produce feedstocks for the chemical industry

(iv) washing plastic bottles on high-speed automatic machines so that they can be reused.

Mixing poly(chloroethene) with a plasticiser makes is suitable for use as:

(i) window frames

(ii) insulation for electric cables

(iii) water pipes

(iv) waterproof clothing

The product of the reaction of ethanoic acid and ammonia at room temperature is:

Which of these compounds are functional group isomers?

(i) CH₃CHCHOH

(ii) CH₃CH₂CHO

(iii) CH₃COCH₃

(iv) CH₃CH₂COCH₃