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Melting point is the higher for
Options
(a) Ga
(b) B
(c) In
(d) Al
Correct Answer:
B
Explanation:
In the boron family the melting point decreases on moving down the group upto Ga. However it is not regular.The melting point of B,Al,Ga and In are 2300, 659,29.8 and 156.4⁰C, respectively.
The high melting point of boron is due to the fact that it exists as a giant covalent polymer in both solid and liquid state.
Related Questions: - The chloramphenicol is an example of
- Electronic configuration of hydride ion is
- If HNO₃ changes into N₂O, the oxidation number is changed by
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Topics: S and Some P Block Elements
(157)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The chloramphenicol is an example of
- Electronic configuration of hydride ion is
- If HNO₃ changes into N₂O, the oxidation number is changed by
- Two chemicals having same chemical formula but different arrangement of atoms
- If 0.2g of an organic compound containing carbon, hydrogen, and oxygen on combustion
Topics: S and Some P Block Elements (157)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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