Class 12

p-Block Elements (Class 12) question bank (Chemistry)

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Q1.

Which of the following oxides of nitrogen is isoelectronic with $CO_2$?

(A)
$NO_2$
(B)
$N_2O$
(C)
$NO$
(D)
$N_2O_2$
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Q2.

The structure of orthophosphoric acid is

(A)
$H-O-P(=O)(OH)_2$
(B)
$O \leftarrow P(OH)_2(H)-O-H$
(C)
$O \leftarrow P(H)_2-O-H$
(D)
$H-O-P(=O)=O$
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