Observe the following statements
i) Silicon doped with P is a p-type semiconductor
ii) Presence of Schottky defects decreases the density
iii) Among simple cubic (sc), body centered cubic (bcc) and cubic close packing (ccp) structures, the packing efficiency is highest for ccp.
The correct statements are

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

i and ii

i, ii and iii

i and iii

ii and iii

answer is D.

(Unlock A.I Detailed Solution for FREE)

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Schottky defect is basically a vacancy defect in ionic solids.
In order to maintain electrical neutrality, the number of missing cations and anions are equal, and this decreases the density of the crystal.
Silicon doped with P is an n-type semiconductor.
The packing efficiency of simple cubic (SC), body centered cubic (bcc) and cubic close packing (ccp) lattices follows the order: scc (52.4 %) < bcc (68 %) < ccp (74 %).
SC is loosely bonded. Almost half the space is empty. CCP is the most efficient packing.

Watch 3-min video & get full concept clarity