M4S3 – Alcohols


98

Alcohols

1 / 10

Why is ethanol a liquid while propane is a gas? (Relative atomic masses: C = 12, H = 1, O = 16)

2 / 10

An alcohol consists of 64.9% carbon, 13.5% hydrogen and 21.6% oxygen.

What is the molecular formula of the compound? (Relative atomic masses: C = 12, H = 1, O = 16)

3 / 10

What type of reaction takes place on passing the vapour of ethanol over hot aluminium oxide? (Water and an alkene are produced)

4 / 10

Which reagent can be used to convert butan-1-ol to but-1-ene?

5 / 10

What is made by heating propan-1-ol under reflux with excess of a hot acidic solution of potassium dichromate(VI) and then distilling off the product?

6 / 10

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

7 / 10

Which of these alcohols is a tertiary alcohol?

(i) CH3CH2CHOHCH3

(ii) CH3CH(CH3)CHOHCH3

(iii) CH3C(CH3)2CH2CHOHCH3

(iv) (CH3)3COH

8 / 10

Which of these alcohols are isomers of butan-1-ol?

(i) CH3CH2CHOHCH3

(ii) (CH3)3COH

(iii) CH3CH(CH3)CH2OH

(iv) (CH3)3CCH2OH

9 / 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

10 / 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

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