| ⇦ | 
| ⇨ |
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: - Alkali metals in each period have
- Which of the following displaces Br₂ from an aqueous solution containing bromide
- Use of hot air balloons in sports and for meteorological observations is an application
- In the reaction : I₂ + I⁻ → I₃⁻, the Lewis base is
- Mg is present in
Topics: S and Some P Block Elements
(157)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Alkali metals in each period have
- Which of the following displaces Br₂ from an aqueous solution containing bromide
- Use of hot air balloons in sports and for meteorological observations is an application
- In the reaction : I₂ + I⁻ → I₃⁻, the Lewis base is
- Mg is present in
Topics: S and Some P Block Elements (157)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply