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JEE Main202224 Jun 2022Evening ShiftChemistryClassification of Elements and Periodicity in PropertiesActual

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

Options

  1. AGa
  2. BAg
  3. CHg
  4. DCs

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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