With which are of the following elements siliC0n should be doped so as to give p- type of semiC0nductor

Which of the following is (n, p) type reaction.

Which of the following will react with acetone to give a product containing C=N- ?

Which one of the following molecules has the largest dipole moment? (Electro-negativity values of elements concerned are: B=2.0, Cl=3.0, F=4.0, H=2.1, N=3.0, O=3.5, P=2.1, S=2.5)

Classify each of the following as being either a p-type or n-type semiconductor: Ge doped with B.

Classify each of the following as being either a p-type or n-type semiconductor:Si doped with As

Give reasons for the following elemental phosphorus doesnot exist as P_2 molecule:- While nitrogen exist as N_2 molecule.

Which of the following statements are true and which are false ? In each case give a valid reasons for saying so. p: Each radius of a circle is a chord of the circle.

Which of the following statements are trụe and which are false. In each case give a valid reason for saying so. i) p: Each radius of a circle is a chord of the circle.

Which of the following statements are true and which are false?Give valid reason for saying so. Circle is a particular case of an elipse.