MHT-CET

3. Classification of elements and periodicity in properties question bank (Chemistry)

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Q1.

Which element from the following possesses half-filled $d$-orbitals either in expected or in observed electronic configuration?

(A)
$Fe$
(B)
$Mn$
(C)
$Ni$
(D)
$Co$
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Q2.

Identify the amphoteric oxide from the following.

(A)
$SO_3$
(B)
$Na_2O$
(C)
$N_2O$
(D)
$Al_2O_3$
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