The correct order of melting points of IIIA group elements is
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya
a
B > Al > Tl > In > Ga
b
B > Al > Ga > In > Tl
c
B > Al > Tl > Ga > In
d
B > Al > In > Tl > Ga
answer is A.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
→ The melting point of Boron is very high because of its gaint covalent polymeric structure.→The low melting point of Gallium is due to Gallium consists f discrete diatomic molcules which are held by weak Vander waals forces of attractions.Melting point order: B > Al >Tl >In > Ga.