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Assertion: Aluminium has a higher melting point than gallium and indium.
Reason: Aluminium has a higher charge density than gallium and indium.

Option: 1

Both Assertion and Reason are true, and the Reason is the correct explanation of the Assertion.

Option: 2

Both Assertion and Reason are true, but the Reason is not the correct explanation of the Assertion.

Option: 3

Assertion is true, but Reason is false.

Option: 4

Assertion is false, but Reason is true.

Answers (1)


The electronegativity of group 13 elements decreases down the group due to the increase in atomic size, which causes a decrease in the attraction between the nucleus and the valence electrons.

Posted by

Suraj Bhandari

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