Control rods known neutron seeking rods

Assertion: Control rods are known as ‘neutron seeking rods’

Reason: Control rods are used to perform sustained nuclear fission reaction

(a) If both the assertion and the reason are true and the reason is the correct explanation of the

assertion.

(b) If both the assertion and the reason are true, but the reason is not the correct explanation of the

assertion.

(c) Assertion is true, but the reason is false.

(d) Assertion is false, but the reason is true

EXPLANATION

Assertion: “Control rods are known as ‘neutron seeking rods'” – TRUE

Control rods are indeed sometimes referred to as “neutron seeking rods” because their main job is to absorb free neutrons in a nuclear reactor.
They are made of materials like cadmium, hafnium, or boron, which are good at capturing neutrons.
By absorbing neutrons, control rods regulate the rate of the fission reaction or can stop it entirely.

🔸 Reason: “Control rods are used to perform sustained nuclear fission reaction” – FALSE

This statement is incorrect.
Control rods do not perform fission; instead, they are used to control or slow down the nuclear fission reaction.
Sustained fission is actually achieved using fuel rods (e.g., uranium or plutonium), not control rods.

🧠 In short:

Control rods control, not perform, the fission.
Therefore, the assertion is true, but the reason is false.