(X) and (Y) are elements belonging to 13th group. The periodic property of (X) is less than (Y). Identify correct combination among the following

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Ga and In -----Melting point

B and Al ------Density at 298 K

Tl and In ------Boiling point

Al and Tl -------EM+3|M°

answer is A.

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Detailed Solution

Melting point ---- Ga < In < Tl

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