Chemistry

Question 1

1Esterification is a reversible reaction.

Medium

A. True B. False

Question 2

2The general formula of the alkanoic acids is

Easy

A. CₙH₂ₙ₊₂ B. CₙH₂ₙ₊₁COOH C. CₙH₂ₙ D. CₙH₂ₙ₊₁OH

Question 3

3A secondary alkanol is oxidised to

Hard

A. an alkanone (ketone) B. an alkanoic acid C. an ester D. an alkane

Question 4

4An alkanoic acid reacts with an alkanol in the presence of concentrated H₂SO₄ to form

Easy

A. an ester and water B. a salt and hydrogen C. an alkene D. a soap

Question 5

5Dehydration of ethanol with concentrated sulphuric acid gives

Medium

A. ethene B. ethanoic acid C. ethyl ethanoate D. ethane

Question 6

6Ethanol turns acidified potassium dichromate from green to orange.

Medium

A. True B. False

Question 7

7Tertiary alkanols are

Hard

A. reduced to alkanes B. oxidised to acids C. not easily oxidised by acidified dichromate D. oxidised to ketones

Question 8

8The IUPAC name of HCOOH is

Easy

A. formaldehyde B. methanoic acid C. ethanoic acid D. methanol

Question 9

9The general formula of the alkanols is

Easy

A. CₙH₂ₙ₊₁COOH B. CₙH₂ₙ₊₁OH C. CₙH₂ₙ₋₂ D. CₙH₂ₙ

Question 10

10Ethanoic acid is a strong acid.

Easy

A. True B. False