MEDIUM
9th Tamil Nadu Board
IMPORTANT
Earn 100

Answer in detail.

What is catenation? How does carbon form catenated compounds?

Important Questions on Carbon and Its Compounds

MEDIUM
9th Tamil Nadu Board
IMPORTANT
Science Standard 9>Chapter 15 - Carbon and Its Compounds>textbook exercises>Q v

Answer in detail. 

What are the chemical reactions of carbon.

MEDIUM
9th Tamil Nadu Board
IMPORTANT
Science Standard 9>Chapter 15 - Carbon and Its Compounds>textbook exercises>Q v

Answer in detail.

Name the three safer resin codes of plastics and describe their features.

MEDIUM
9th Tamil Nadu Board
IMPORTANT
Science Standard 9>Chapter 15 - Carbon and Its Compounds>textbook exercises>Q vi

High Order Thinking Skills.

Why does carbon exist mostly in combined state?

MEDIUM
9th Tamil Nadu Board
IMPORTANT
Science Standard 9>Chapter 15 - Carbon and Its Compounds>textbook exercises>Q vi

High Order Thinking Skills.

When a carbon fuel burns in a less aerated room, it is dangerous to stay there. Why?

MEDIUM
9th Tamil Nadu Board
IMPORTANT
Science Standard 9>Chapter 15 - Carbon and Its Compounds>textbook exercises>Q vi

High Order Thinking Skills.

Explain how dioxins are formed? Which plastic-type they are linked to and why they are harmful to humans?

MEDIUM
9th Tamil Nadu Board
IMPORTANT
Science Standard 9>Chapter 15 - Carbon and Its Compounds>textbook exercises>Q vi

High Order Thinking Skills.

Yugaa wants to buy a plastic water bottle. She goes to the shop and sees four different kinds of plastic bottles with resin codes 1, 3, 5 and 7. Which one she should buy? Why?