Question

Assertion: Dalton’s theory states that an atom is indivisible.
Reason: An atom is made up of electrons, protons and neutrons.

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

Answer 1

The correct option is B The Assertion and the Reason are correct but the reason is not the correct explanation of the Assertion

According to the Dalton’s atomic theory, an atom is indivisible so the assertion is correct, but later it was known that an atom is divisible and contain subatomic particles namely: electrons, protons and neutrons.
Hence the reason is correct but the reason is not the correct explanation for the assertion.