Kerala SCERT Class 9 Chemistry The World Of Carbon Question Answer
Kerala SCERT Class 9 Chemistry Chapter 7 The World Of Carbon Question Answer Solution Here. Kerala Board Class 9 Students can find Here 7th Chapter The World Of Carbon Notes provide by our Teacher. Important Question Answer from Chapter 7 The World Of Carbon.
- Board- Kerala Board.
- Class – 9.
- Subject – Chemistry Part 2
- Chapter – 7
- Chapter Name – The World Of Carbon.
- Topic – Question Answer Solution.
Q.1) MCQ
1) Which residue left behind when Carbon containing substance Undergo combustion.
a) Carbon
b) Methane
c) Charcoal
d) Ethane
2) Which of the following is non – conductor of crystalline allotrope Of Carbon.
a) Graphite
b) Dimond
c) Graphene
d) Carbon
3) Which is softed Crystalline Allotrope of Carbon.
a) Graphite
b) Dimond
c) Graphene
d) Fullerene
4) —————- is a hollow structure consisting of pentagon and Hexagons.
a) Graphite
b) Dimond
c) Fullerene
d) Graphene
5) ————– used as fuel.
a) CO
b) CO2
c) C
d) CH4
6) ————– used in fire extinguisher.
a) C
b) CO2
c) CO
d) CH4
7) Chemical formula of washing soda.
a) NaHCO3
b) CaCO3
c) Na2CO31OH2O
d) MgO
8) Carbon has ————- electrons in its outermost shell.
a) 3
b) 2
c) 4
d) 1
9) Valency of Carbon is ———–.
a) 1
b) 2
c) 3
d) 4
Q.4) Very short answer.
1) Define Catenation?
2) What is Allotropy?
3) How many allotropes does carbon have?
4) State the characteristics of diamond?
5) Explain two uses of diamond?
6) What are coloured diamonds?
7) State characteristics of Graphite?
8) State two uses of Graphite?
9) What is fullerene?
10) State some uses of CO2?
Q.3) Short answer question.
1) Distinguish between Diamond & Graphite?
2) What is Graphite, State uses & characteristics?
3) Match the pair.
Diamond | Non electric conductor |
Graphite | D
Fuel |
CO | Green house effect |
CO2 | Soft and Grey |
4) Explain Green house effect and Global warning?
5) Define covalent bond? Explain types of covalent bond with one Example?
Q.4) Long answer question.
1) Why Graphite is one of the allotropes of Carbon conducts electricity And diamond not?
2) Write structure of Straight Chain and ring hydrocarbon having five Carbon atoms?
3) a) Write chemical formula of Calcium Carbonate& baking soda?
b) What happens when they react with acid give a chemical reaction?
4) Explain uses of CO and CO2?
5) Explain dry powder fire extinguisher?
6) Write a note on Graphene?
Solution:
Kerala SCERT Class 9 Chemistry Solution World of CarbonFor more update follow net explanations page