Statement-I : Germanium is preferred over silicon for making semiconductor devices
Statement-II : Energy gap for Ge is more than that of `SI`

Why germanium is preferred over silicon for making semiconductor devices?

The question given below consist of an assertion (A) and a reason ( R). Use the following key to choose the appropriate answer to these questions from the codes (a), (b), ( c) and (d) given below: (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true but R is NOT the correct explanation of A. (c) A is true but R is false. (d) A is false and R is also false. Assertion: Silicon is preferred over germanium for making semiconductor devices. Reason: Energy gap for germanium more than the energy gap of silicon.

Assertion: Silicon is preferred over germanium for making semiconductor devices. Reason: The energy gap for germanium is more than the energy gap of silicon.

Statement I : soft iron is preferred for making electromagnets . Statement II : Both permeability and retentively of soft iron are high .

Consider the following statements A and B and identify the correct answer (1) : Germanium is preferred over silicon in the construction of zener diode. (2) : Germanium has high thermal stability than silicon in the construction of Zener diode.

Statement-I : Lithium is a better reducing agent than Cs. Statement-II : Sublimation energy and ionization energy of lithium is less than that of Cs.