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Which compound liberates oxygen when it reacts with ice-cold water?
CHEMISTRY · Single correct
Problem
Which compound liberates oxygen when it reacts with ice-cold water? (1)
N
a
2
O
2
\mathrm{Na_2O_2}
N
a
2
O
2
(2)
K
O
2
\mathrm{KO_2}
K
O
2
(3)
N
a
2
O
\mathrm{Na_2O}
N
a
2
O
(4)
C
s
2
O
2
\mathrm{Cs_2O_2}
C
s
2
O
2
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