1
IIT-JEE 2012 Paper 1 Offline
MCQ (Single Correct Answer)
+1
-0.25
In allene (C3H4), the type(s) of hybridisation of the carbon atoms is (are):
A
sp and sp3
B
sp and sp2
C
only sp3
D
sp2 and sp3
2
IIT-JEE 2012 Paper 1 Offline
MCQ (Single Correct Answer)
+4
-1
The kinetic energy of an electron in the second Bohr orbit of a hydrogen atom is [$$\alpha_0$$ is Bohr radius]
A
$${h^2 \over {4{\pi ^2}m\alpha _0^2}}$$
B
$${h^2 \over {16{\pi ^2}m\alpha _0^2}}$$
C
$${h^2 \over {32{\pi ^2}m\alpha _0^2}}$$
D
$${h^2 \over {64{\pi ^2}m\alpha _0^2}}$$
3
IIT-JEE 2012 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1

A compound MpXq has cubic close packing (ccp) arrangement of X. Its unit cell structure is shown below. The empirical formula of the compound is

IIT-JEE 2012 Paper 1 Offline Chemistry - Solid State Question 9 English

A
MX
B
MX2
C
M2X
D
M5X14
4
IIT-JEE 2012 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1

The carboxyl functional group ($$-$$COOH) is present in

A
picric acid
B
barbituric acid
C
ascorbic acid
D
aspirin
JEE Advanced Papers
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12