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Standard XII
Chemistry
Question
Which among the following group
16
elements exists in more than two allotropic states?
Tellurium
Selenium
Polonium
Oxygen
A
Oxygen
B
Tellurium
C
Selenium
D
Polonium
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Solution
Verified by Toppr
Sr. No.
Element
Allotropes
(a)
Polonium
α
and
β
-polonium
(b)
Tellurium
None
(c)
Selenium
Trigonal, rhombohedral, three deep red monoclinic forms
(
α
,
β
,
a
n
d
λ
−
amorphous red, black vitrous selenium
)
(d)
Oxygen
Dioxyen and ozone
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