JEE Advanced 2014Paper 1

Exam: JEE Advanced
Year: 2014
Paper: Paper 1
Subject: Chemistry
Chapter: p Block Elements (Group 15, 16, 17 & 18)

JEE Advanced 2014 · Paper 1 · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

The pair(s) of reagents that yield paramagnetic species is/are

Options

ANa and excess of $N{H}_{3}$
BK and excess of ${O}_{2}$
CCu and dilute $HN{O}_{3}$
D ${O}_{2}$ and 2- ethylanthraquinol

Correct answer

A. Na and excess of $N{H}_{3}$

Step-by-step solution

A] sodium (Na) when dissolved in excess liquid ammonia, forms a blue coloured paramagnetic solution.
B]

The pair(s) of reagents that yield paramagnetic species is/are
C]

Where "NO" is paramagnetic.
D]

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