CBSE
Multiple Choice QuestionsAtoms in a P4 molecule of white phosphorus are arranged regularly in the following way
at the corners of a cube
at the corners of an octahedron
at the corners of a tetrahedron
at the centre and corners of a tetrahedron
Which one of the following is not true at room temperature and pressure?
P4O10 is white solid
SO2 is a colourless gas
SO3 is a colourless gas
NO2 is a brown gas
Which of the following is a polar molecule?
BF3
SF4
SiF4
XeF4
Of the following acids the one which has the capability to form complex compound and also possesses oxidising and reducing properties is
HNO3
HNO2
HCOOH
HCN
P4O10 is the anhydride of
H3PO2
H3PO3
H3PO4
H4P2O7
Which one of the following is paramagnetic?
N2
NO
CO
O3
An element belongs to group 15 and third period of the Periodic Table. Its electronic configuration will be:
1s22s22p3
1s22s22p4
1s22s22p63s23p3
1s22s22p63s23p2
Which is the strongest acid in the following?
H2SO4
HClO3
HClO4
H2SO3
Which of the following is used to prepare Cl2 gas at room temperature from concentrated HCl?
MnO2
H2S
KMnO4
Cr2O3
NO2 is not obtained on heating:
AgNO3
KNO3
Cu(NO3)2
Pb(NO3)2
