Question

Identify the unsaturated compounds from the following 1Mark
(i) Propane (ii) Propene (iii) Propyne (iv) Chloropropane
a) (i) and (ii)
(b) (ii) and (iv)
(c) (iii) and (iv)
(d) (ii) and (iii)
2. Which of the following statements is/are usually correct for carbon compounds? 1MARK
(i) These are good conductors of electricity
(ii) These are poor conductors of electricity
(iii) These have strong forces of attraction between their molecules
(iv) These do not have strong forces of attraction between their molecules
a) (i) and (iii)
(b) (ii) and (iii)
(c) (i) and (iv)
(d) (ii) and (iv)
3. C3H8 belongs to the homologous series of- 1MARK
(a) Alkynes
(b) Alkenes
(c) Alkanes
(d) Cyclo alkanes

4. Buckminsterfullerene is an allotropic form of 1 MARK
a. Phosphorus
b. Sulphur
c. Carbon
d. Tin
5. Subsequent members of homologous series differ by how many atomic mass units?
1 MARK
a.14
b.16
c.24
d.28
6. The H-C-H bond angle in methane is approximately……... degree. 1MARK
a.1050
b.107.50
c. 109.50
d.1200

Answer 1

Answer:

following 1Mark

(i) Propane (ii) Propene (iii) Propyne (iv) Chloropropane

a) (i) and (ii)

(b) (ii) and (iv)

(c) (iii) and (iv)

(d) (ii) and (iii)

2. Which of the following statements is/are usually correct for carbon compounds? 1MARK

(i) These are good conductors of electricity

(ii) These are poor conductors of electricity

(iii) These have strong forces of attraction between their molecules

(iv) These do not have strong forces of attraction between their molecules

a) (i) and (iii)

(b) (ii) and (iii)

(c) (i) and (iv)

(d) (ii) and (iv)

3. C3H8 belongs to the homologous series of- 1MARK

(a) Alkynes

(b) Alkenes

(c) Alkanes

(d) Cyclo alkanes

4. Buckminsterfullerene is an allotropic form of 1 MARK

a. Phosphorus

b. Sulphur

c. Carbon

d. Tin

5. Subsequent members of homologous series differ by how many atomic mass units?

1 MARK

a.14

b.16

c.24

d.28

6. The H-C-H bond angle in methane is approximately……... degree. 1MARK

a.1050

b.107.50

c. 109.50

d.1200

Answer 2

• (i) and (ii)

• These are good conductors of electricity

• Carbon
• 14
• 107.50