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JEE Advanced 2020Paper 2
Exam
JEE Advanced
Year
2020
Paper
Paper 2
Subject
Chemistry
Chapter
Chemical Bonding and Molecular Structure

JEE Advanced 2020 · Paper 2 · Chemistry · Chemical Bonding and Molecular Structure

In an experiment, m grams of a compound X (gas/liquid/solid) taken...

In an experiment, mm grams of a compound XX (gas/liquid/solid) taken in a container is loaded in a balance as shown in figure II below. In the presence of a magnetic field, the pan with XX is either deflected upwards (figure IIII), or deflected downwards (figure IIIIII), depending on the compound XX. Identify the correct statement(s).

 In an experiment, m grams of a compound X (gas/liquid/solid) taken in a container is loaded in a balance as shown in

Options

  1. AIf XX is H2O(l),{H}_{2}O ( l ) , deflection of the pan is upwards.
  2. BIf XX is K4[Fe(CN)6](s),{K}_{4}\left[Fe ( CN{)}_{6}\right] ( s ) , deflection of the pan is upwards.
  3. CIf XX O2(g),{O}_{2} ( g ) ,deflection of the pan is downwards.
  4. DIf XX is C6H6(l),{C}_{6}{H}_{6} ( l ) , deflection of the pan is downwards

Correct answer

A. If XX is H2O(l),{H}_{2}O ( l ) , deflection of the pan is upwards.

Step-by-step solution

Paramagnetic substance attracted by magnetic field so magnetic balance show downward deflection.
While diamagnetic substance show repulsion in magnetic field show magnetic balance show upward
deflection.

Compound Magnetic Nature Deflection
(a)( a ) H2O{H}_{2}O Diamagnetic Upward
(b)( b ) K4[Fe(CN)6]{K}_{4}\left[Fe ( CN{)}_{6}\right] Diamagnetic Upward
(c)( c ) O2(g){O}_{2} ( g ) Paramagnetic Downward
(d)( d ) C6H6{C}_{6}{H}_{6} Diamagnetic Upward

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