2019 MC

Question 1

Answer 1

Question 2

Answer 2

B

While A and C have polar bonds within the molecule they are both symmetric.

D is symmettric also but C-H bonds are considered non polar in any case

Question 3

Answer 3

A

This is expected knowedge

Question 4

Answer 4

C

Balancing the electrons gives a 2 : 3 ratio which simplifies to 1 : 1.5

Question 5

Answer 5

B

Looking for a tertiary alkanol in these questions is easy. The OH group and a branch must be on same C number

Question 6

Answer 6

A

Tough Q that needs recognition that ONE peptide bond will be broken

Question 7

Answer 7

D

Alkanols and alkanones onky have 1 O atom so neither B nor C could be correct.

Esters and alkanoic acids ARE isomers but A only has 5 C atoms

Question 8

Answer 8

B

Neither C nor D can be oxidised.

A would give an alkanal when oxidised and this COULD be oxidised by Fehlings

Question 9

Answer 9

D

Not much to say if you follow the rules carefully

Question 10

Answer 10

D

Terpenes have multiples of 5 C atoms which A,B,and C have but D doesn’t

Question 11

Answer 11

C

Al the other 3 are oxidation reactions

Question 12

Answer 12

B

Once the explanation is given this should be a standard level c probelem solving Q

Question 13

Answer 13

D

Question 14

Answer 14

Question 15

Answer 15

B

Question 16

Answer 16

A