Organic Chemistry & Analysis Random Retrieval

This quiz contains all the questions in the Organic Chemistry & Analysis section. The website will pick 10 questions at random.

1 / 10

This is the ¹H NMR spectrum of:

butan-1-ol

butan-2-ol

methylpropan-2-ol

methylpropan-1-ol

2 / 10

Which of these compounds are chiral?

(i) CH₂Cl₂

(ii) CH₂ClBr

(iii)CHCl₂F

(iv) CH₃CHClBr

(i), (ii) and (iii)

(i) and (iii) only

(ii) and (iv) only

(iv) alone

3 / 10

Which of these chemical species are electrophiles which add to alkenes?

(i) bromine molecules

(ii) sulfuric acid molecules

(iii) hydrogen bromide molecules

(iv) sulfate ions

(i), (ii) and (iii)

(i) and (iii) only

(ii) and (iv) only

(iv) alone

4 / 10

In which of these organic compounds are all the bonds non-polar?

(i) 1-bromobutane

(ii) butene

(iii) butan-2-ol

(iv) butane

(i), (ii) and (iii)

(i) and (iii) only

(ii) and (iv) only

(iv) alone

5 / 10

Step 1:

fractional distillation

heat and catalyst

ultra violet light

combustion

6 / 10

Which of these molecules does NOT consist of one or more chains of amino acids?

(i) The hormone insulin

(ii) The filaments in muscle fibres

(iii) The enzyme in saliva, amylase

(iv) The genetic material, DNA

(i), (ii) and (iii)

(i) and (iii) only

(ii) and (iv) only

(iv) alone

7 / 10

Which of the listed liquids reacts with sodium borohydride NaBH₄ in a nucleophilic addition reaction?

(i) CH₃CH₂OH

(ii)CH₃COCH₃

(iii)CH₃CO₂H

(iv)CH₃CHO

(i), (ii) and (iii)

(i) and (iii) only

(ii) and (iv) only

(iv) alone

8 / 10

Reagents which can be used in a test-tube test to distinguish aldehydes from ketones are:

(i) Tollen's reagent

(ii) 2,4-dinitrophenylhydrazine

(iii) Fehling's solution

(iv) sulfuric acid

(i), (ii) and (iii)

(i) and (iii) only

(ii) and (iv) only

(iv) alone

9 / 10

Which of these aldehydes are isomers of pentan-2-one?

(i) pentanal

(ii) 2-methylbutanal

(iii) 3-methylbutanal

(iv) 2,2-dimethylbutanal

(i), (ii) and (iii)

(i) and (iii) only

(ii) and (iv) only

(iv) alone

10 / 10

Treating ethanal with hydrogen cyanide in the presence of some KCN and then hydrolysing the product with hot hydrochloric acid (which converts a cyano / nitrile group RCN, to RCOOH) produces:

HO-CH₂-CH₂-CO₂H

HO₂C-CH₂-CH₂-CO₂H

CH₃-CHOH-CO₂H

CH₂=CH-CO₂H

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