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Halogens and Noble Gases - 4
1.
I
2
O
5
is prepared by dehydration of
a) HIO
3
b) HIO
4
c) HIO
d) HIO
6
2.
Pick the incorrect xenon fluoride
a) XeF
6
b) XeF
3
c) XeF
4
d) XeF
2
3.
When XeF
4
is reacted with ammonia, which product is not formed
a) XeF
2
b) HF
c) Xe
d) N
2
4.
Which noble gas is used for high speed photography
a) He
b) Ne
c) Kr
d) Ar
5.
When chlorine is reacted with NaOH at high temperature the products are
a) NaCl+NaClO
3
b) NaCl+NaClO
4
c) NaClO+NaClO
3
d) NaCl+NaClO
6.
Chlorine gas is not used for the preparation of
a) NaCl
b) CHCl
3
c) CCl
4
d) PVC
7.
Cryolite
a) KCl. MgCl
2
. 6H
2
O
b) Na
3
AlF
6
c) CaF
2
. 3Ca
3
(PO
4
)
2
d) CaF
2
8.
Apatite
a) CaF
2
. 3Ca
3
(PO
4
)
2
b) KCl. MgCl
2
. 6H
2
O
c) Na
3
AlF
6
d) CaF
2
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