1
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following fluro-compounds is most likely to behave as a Lewis base ?
A
BF3
B
PF3
C
CF4
D
SiF4
2
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language
Suppose the elements X and Y combine to form two compounds XY2 and X3Y2. When 0.1 mole of XY2 weights 10 g and 0.05 mole of X3Y2 weighs 9 g, the atomic weights of X and Y are
A
40, 30
B
60, 40
C
20, 30
D
30, 20
3
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following pairs of d-orbitals will have electron density along the axes ?
A
$${d_{{z^2}}},\,\,{d_{xz}}$$
B
dxz,  $${d_{yz}}$$
C
$${d_{{z^2}}},\,\,{d_{{x^2} - {y^2}}}$$
D
$${d_{xy}},\,{d_{{x^2} - {y^2}}}$$
4
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language
The hybridizations of atomic orbitals of nitrogen in NO$$_2^ + $$, NO$$_3^ - $$  and  NH$$_4^ + $$  respectively are
A
sp, sp3 and sp2
B
sp2, sp3 and sp3
C
sp, sp2 and sp3
D
sp2, sp and sp3