Chemistry
Assertion (A): Carbon can form a large number of compounds, most of which are studied under organic chemistry.
Reason (R): Carbon atoms can form long chains with each other.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Related Questions
What steps should be taken to balance carbon dioxide in the atmosphere?
Fill in the blanks:
(a) …………… is formed when carbon is burnt in a limited supply of air or oxygen.
(b) Carbon monoxide burns in air with a …………… flame to form carbon dioxide.
(c) Carbon monoxide is a product of …………… combustion.
(d) A mixture of 95% oxygen and 5% carbon dioxide is called ……………
(e) Carbon monoxide is used as a …………… in the extraction of pure metals from their corresponding ores.
Assertion (A): Coal is used as a fuel for domestic purposes and industries.
Reason (R): Coal is an amorphous form of carbon.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Assertion (A): Diamond and graphite are crystalline allotropes of carbon.
Reason (R): Both diamond and graphite are good conductors of electricity and are used as gems.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.