School Quizzes

Maharashtra State Board School Quizzes

Quiz on Carbon and Carbon Compounds (General Science)

Vincent Augustine D'Souza

Standard Eight Science

1. What is meant by an allotrope?

Compounds of metals.
Extinct animal.
Atom of metal.
An element found in more than one form.
Correct Answer: An element found in more than one form.

2. Which are the allotropes of carbon?

Lutetium, Thulium, Erbium.
Holmium, Terbium, Europium etc.
Diamond, graphite, fullerene, coke, coal etc.
Gold, silver, copper.
Correct Answer: Diamond, graphite, fullerene, coke, coal etc.

3. Why is diamond used to cut metals?

Metals are soft.
Diamond is extremely hard.
Diamond glows.
Diamond shines.
Correct Answer: Diamond is extremely hard.

4. Why is carbon dioxide is used for putting out fires?

Carbon dioxide neither burns nor supports burning.
Carbon dioxide melts.
Carbon dioxide is green.
Carbon dioxide is heavy.
Correct Answer: Carbon dioxide neither burns nor supports burning.

5. Which gas is formed in a biogas plant?

methane
ozone
neon
helium
Correct Answer: methane

6. What is fullerene?

Fuller's field
Yellow metal
An allotrope of carbon.
Blue liquid
Correct Answer: An allotrope of carbon.

7. What turns lime water milky?

Dettol
Carbon dioxide
Liquid bleach
White paint
Correct Answer: Carbon dioxide

8. How is charcoal made?

By mixing coal and sand.
By dipping wood in water.
By cutting grass.
By burning substances of plant origin.
Correct Answer: By burning substances of plant origin.

9. How is graphite used in pencil known?

lead
tungsten
mica
nickel
Correct Answer: lead

10. What is the percentage of carbon in peat?

0.8
0.11
0.6
0.22
Correct Answer: 0.11

11. Who of the following was not awarded Nobel Prize for Chemistry in 1996?

Richard Smalley
Robert Curl
James Heath
Harold Kroto
Correct Answer: James Heath

Originally posted 2015-11-24 11:31:03.