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Standard XII
Chemistry
Periodic Properties
The radioacti...
Question
The radioactive halogen element is:
A
Iodine
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B
Bromine
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C
Astatine
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D
None of the above
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Q.
The elements which normally exist in the liquid state are :
(a) bromine and iodine
(b) mercury and chlorine
(c) iodine and mercury
(d) bromine and mercury
Q.
Which among the following radioactive elements resembling Iodine in properties?
Q.
Explain the following with reasons:
(i) Chlorine displaces iodine from
K
I
solution but iodine does not displace bromine from
K
B
r
solution. Why?
(ii)
H
g
+
H
2
S
O
4
→
H
g
S
O
4
+
H
2
Above reaction is not possible.
Q.
HALOGENS OF GROUP 7 OF THE PERIODIC TABLE ARE PRESENT IN ACIDS ( LIKE FLOURINE IN HF , CHLORINE IN HCl ,BROMINE IN HBr AND IODINE IN HI ) SO IS ASTATINE(At) AN EXCEPTION OR IS IT ALSO PRESENT IN SOME ACID ?
Q.
The radioactive halogen element is:
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