1
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following components provides sticky character to the bacterial cell?
A
Nuclear membrane
B
Plasma membrane
C
Glycocalyx
D
Cell wall
2
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one is the wrong statement ?
A
The uncertainty principle is

$$\Delta E \times \Delta t \ge {h \over {4\pi }}$$
B
Half filled and fully filled orbitals have greater stability due to greater exchange energy, greater symmetry and more balanced arrangement.
C
The energy of 2s-orbital is less than the energy of 2p-orbital in case of hydrogen like atoms.
D
de-Broglie's wavelength is given by

$$\lambda = {h \over {mv}}$$, where m = mass of the particle,

v $$=$$ group velocity of the particle.
3
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Change Language
It is because of inability of ns2 electrons of the valence shell to participate in bonding that
A
Sn2+ is oxidising while Pb4+ is reducing
B
Sn2+ and Pb2+ are both oxidising and reducing
C
Sn4+ is reducing while Pb4+ is oxidising
D
Sn2+ is reducing while Pb4+ is oxidising
4
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following statements is not correct?
A
Ovalbumin is a simple food reserve in egg-white.
B
Blood proteins thrombin and fibrinogen are involved in blood clothing.
C
Denaturation makes the proteins more active.
D
Insulin maintains sugar level in the blood of a human body.