Question

Direction (Question No.: 4 to 7); in the following questions the Assertion and Reason
have been put forward. Read the statements carefully and choose the correct
alternative from the following:
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) Assertion is correct but the Reason is wrong.
d) Assertion is wrong but the Reason is correct.

4. Assertion : A Porter carries a luggage on his head and walk does zero work.

Reason: Angle between force and displacement is 90°.

5. Assertion: An atom is electrically neutral.

Reason: The negative and positive changes are equal in magnitude in an atom.

6. Assertion: Neurons are said to possess the property of excitability.

Reason: Neurons can get excited by a given stimulus.

7. Assertion: ciliated epithelium helps in the movement of particles.

Reason: Cilia help in movement.​

Answer 1

(D) Sodium acetylide reacts with tertiary alkyl halide to form alkene as

major product

Answer 2

Answer:

Halogens act as strong oxidising agents because they have high tendency to accept electron, i.e., they have high electron affinity values. The reduction potentials are high ( positive ) and decreased from FF to I .