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Group 5A and Group 6A elements - 3
1.
Sulphur is soluble in ___________.
a) Sulphur
b) Carbon disulphide
c) Polonium (Po)
d) Phosphorus
2.
Electro negativity of nitrogen is _____________.
a) 3.1
b) 2.3
c) 3.0
d) 2.1
3.
Reaction of H
3
PO
3
with nascent hydrogen to produce _____________ and H
2
O.
a) 3, Hcl
b) PH
3
Phosphoric
c) PH
3
d) V
2
O
5
Vanadium pentaoxide
4.
C
12
H
22
O
11
Conc. H
3
SO
4
__________ + __________ .
a) PH
3
Phosphoric
b) 12 C + 11H
2
o
c) Dinitrogenoxide (N
2
O)
d) 3, Hcl
5.
Physical appearance of Bismuth is
a) metallic solid
b) Non metallic solid
c) White
d) colourless
6.
The oxidation state of nitrogen peroxide is
a) +1
b) +2
c) +4
d) +5
7.
Ring test is used for the confirmation of
a) Borates
b) Nitrates
c) Carbonates
d) Phosphates
8.
In Brickland and Eydes process O2 and N2 are combined at
a) 1000Co
b) 3000Co
c) 2500Co
d) 4000Co
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