Question

Assertion : The atmospheric carbon dioxide enters into the plants through the process of photosynthesis to form carbohydrates.
Reason : Charcoal, diamond and graphite are elemental forms of carbon.

• A. Assertion is true but Reason is false.
• B. Both assertion and reason are true and reason is the correct explanation of assertion.
• C. Assertion is false but Reason is true.
• D. Both assertion and reason are true but reason is not the correct explanation of assertion.

Answer 1

The correct option is D

Both assertion and reason are true but reason is not the correct explanation of assertion.

• Carbon occurs in various forms on earth. Charcoal, diamond and graphite are elemental forms of carbon whereas carbon monoxide, carbon dioxide and carbonate salts are combined forms.
• The atmospheric carbon dioxide enters into the plants through the process of photosynthesis to form carbohydrates.
• All living organisms need carbon as they are made up of carbon containing molecules like proteins and nucleic acids.