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TN 9th Tamil உள்ளத்தின் சீர் -கற்கண்டு (இலக்கணம்) - தொடர் இலக்கணம், ஆகுபெயர் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் -விரிவானம் (துணைப்பாடம்) - தாய்மைக்கு வறட்சி இல்லை! Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் -கவிதை பேழை (செய்யுள்) - மார்கழி பெருவிழா Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உயிருக்கு வேர்-இலக்கணம் - பகுபத உறுப்பிலக்கணம் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil அமுதென்று பேர் - இலக்கணம்-எழுத்து -அளபெடை Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil அமுதென்று பேர்-துணைப்பாடம் - ஆறாம்திணை Important Questions And Answers Study Material - QB365 Set A
Published on: 09/12/2020
9th Standard Science Carbon and its Compounds English Medium Free Online Test 1 Mark Questions 2020-2021
Download Tamil Nadu 9th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
Which Amorphous form of carbon is used in making electrode in dry cell?
coke
gas carbon
lampblack
charcoal
2.
Which of the following is prepared by heating CaO and coke?
CaC2
CaCO3
CO2
CO
3.
The legal measures to prevent plastic pollution come under the ___________ Protection Act 1988.
Forest
Wildlife
Environment
Human Rights
4.
Graphene is one atom thick layer of carbon obtained from
Diamond
Fullerene
Graphite
Gas Carbon
5.
Graphite is used as lubricant in machines because
it is good conductor of electricity
it is made of slippery layers and has high melting point
it has high density
it is strong and soft
6.
Plastics made of Polycarbonate (PC) and Acrylonitrile Butadiene Styrene (ABS) are made of resin code ___________
2
5
6
7
7.
Which of the following is highly toxic?
Carbon dioxide
Carbon monoxide
Calcium carbonate
Sodium bicarbonate
8.
Diamond is not a good conductor of electricity because
it is very hard
it has no free electron
its structure is uniform
it is insoluble in water
9.
The carbon atoms in fullerene are arranged in mixed
Tetragon and Pentagon
Pentagon and Hexagon
Hexagon and Heptagon
Heptagon and Octagon
10.
A phenomenon in which an element exists in different modifications in same physical state is called
Isomerism
Allotropy
Catenation
Crystallinity
1.
(b)
gas carbon
2.
(a)
CaC2
3.
(c)
Environment
4.
(c)
Graphite
5.
(b)
it is made of slippery layers and has high melting point
6.
(d)
7
7.
(b)
Carbon monoxide
8.
(b)
it has no free electron
9.
(b)
Pentagon and Hexagon
10.
(a)
Isomerism
9th Standard Syllabus & Materials
9th Standard
TN 9th Tamil உள்ளத்தின் சீர் - திருக்குறள் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் - மணிமேகலை Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் - ஏறு தழுவுதல் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உயிருக்கு வேர் - தண்ணீர் Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 9th Standard Subjects
Tamilnadu Stateboard Standards
