IIT-JEE 2007 Paper 2 Offline | p-Block Elements Question 57 | Chemistry

IIT-JEE 2007 Paper 2 Offline

MCQ (Single Correct Answer)

-1

This question contains STATEMENT-1 (Assertion) and STATEMENT-2 (Reason) and has 4 choices (a), (b), (c), (d) out of which ONLY ONE is correct.

STATEMENT-1 : Band gap in germanium is small. because

STATEMENT-2 : The energy gap of each germanium atomic energy level is infinitesimally small.

Statement - 1 is True, Statement - 2 is True; Statement - 2 is a correct explanation for Statement - 1

Statement - 1 is True, Statement - 2 is True; Statement - 2 is not a correct explanation for Statement - 1

Statement - 1 is True, Statement - 2 is False

Statement - 1 is False, Statement - 2 is True

IIT-JEE 2002 Screening

MCQ (Single Correct Answer)

-0.5

Specify the coordination geometry around and hybridisation of N and B atoms in a 1 : 1 complex of BF₃ and NH₃

N : tetrahedral, sp³; B : tetrahedral, sp³

N : pyramidal, sp³; B : pyramidal, sp³

N : pyramidal, sp³; B : planar, sp²

N : pyramidal, sp³; B : tetrahedral, sp³

IIT-JEE 1999

MCQ (Single Correct Answer)

-0.5

The oxidation number of sulphur in S₈,S₂F₂,H₂S respectively, are

0, +1 and -2

+2, +1 and -2

0, +1 and +2

-2, +1 and -2

JEE Advanced Subjects