Core Organic Chemistry Random Retrieval

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Core Organic Chemistry Random Retrieval

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

1 / 10


Choose one of the following options:

2 / 10

How many structural isomers of C4H8O are there?

It's really difficult to get all of these structures, so don't panic if you miss some. Just spend some time sketching out all the possibilities and remembering some simple rules, e.g carbon forms 4 bonds, oxygen forms 2 etc. Be creative!

3 / 10

Infra-red absorption ranges for some bonds are as follows:

C-H, 2850 - 3300 cm-1

C=C, 1620 - 1680 cm-1

C=O, 1680 - 1750 cm-1

C-O, 1000 - 1300 cm-1

O-H (alcohols), 3230 - 3550 cm-1

O-H (acids), 2500 - 3000 cm-1

The IR spectrum of propanal has one particularly strong absorption peak

This can be expected to be at:

4 / 10

The number of peaks in the mass spectrum of an element indicates the number of:

5 / 10

Adding a compound X, C4H10O, drop by drop to a hot acidic solution of potassium dichromate(VI) and allowing the product to distil off as it forms, produces a compound which gives a silver mirror with Tollens solution. This shows that X could be:

(i) CH3CH2CH2CH2OH

(ii)CH3CH2CHOHCH3

(iii)CH3CH(CH3)CH2OH

(iv) CH3CH2OCH2CH3

6 / 10

Which of these alcohols is oxidised to a ketone by a hot acidic solution of potassium dichromate(VI)?

(i) (CH3)3COH

(ii) CH3CH2CHOHCH3

(iii) CH3CH2CH2CH2OH

(iv) CH3C(CH3)2CH2CHOHCH3

7 / 10

What is the product when methanol and propanoic acid are mixed and warmed in the presence of a few drops of acid?

8 / 10

Which alkene polymerises to form this polymer?---CH(CH3)CH2CH(CH3)CH2CH(CH3)CH2---

9 / 10

Passing the vapour of a liquid mixture of alkanes over strongly heated porcelain chips produces a product which:

(i) is a gas

(ii) is highly flammable

(iii) decolourises a solution of bromine

(iv) is soluble in water.

10 / 10

What is the name for this structure:

CH3CH(CH3)CH(CH3)CH2CH3?

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