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JEE Main 202224 JuneEvening Shift

Exam: JEE Main
Year: 2022
Date: 24 June
Shift: Evening Shift
Subject: Chemistry
Chapter: Classification of Elements and Periodicity in Properties

JEE Main 2022 · 24 June · Evening Shift · Chemistry · Classification of Elements and Periodicity in Properties

Metals generally melt at very high temperatures, Among the...

Metals generally melt at very high temperatures, Among the following which one has the highest melting point?

Options

A $Ga$
B $Ag$
C $Hg$
D $Cs$

Correct answer

B. $Ag$

Step-by-step solution

Transition metals have high melting point due to their high enthalpy of atomisation. They form strong metallic bonds with unpaired electrons.

Melting point of $Ag = 961 . 8 ° C$

Melting point of $Cs = 28 . 5 ° C$

Melting point of $Ga = 30 ° C$

Melting point of $Hg = - 38 . 83 ° C$

$Cs, Ga$ and $Hg$ are liquid at or near room temperature.

Among the given options $Ag$ has the maximum Melting point, as it belongs to transition metal series.

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