Class 12

d-and f-Block Elements question bank (Chemistry)

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Q1.

Choose the element which is not radioactive.

(A)
$Cm$
(B)
$No$
(C)
$Mo$
(D)
$Md$
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Q2.

Which of the following pairs of ions may exhibit the same colour?

(A)
$Cr^{+3}$ and $Fe^{+2}$
(B)
$Ti^{+3}$ and $V^{+2}$
(C)
$Fe^{+3}$ and $Mn^{+2}$
(D)
$Cu^{+}$ and $Ni^{+2}$
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