| ⇦ | 
| ⇨ |
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: - Which of the following protein destroy the antigen when it enters in body call
- The diazotization of two feebly basic aromatic amines is achieved by using
- The rocket fule among the following is
- Which of the following can act as both oxidising and reducing agents
- Which of the following is the least stable and its existence is doubtful
Topics: S and Some P Block Elements
(157)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following protein destroy the antigen when it enters in body call
- The diazotization of two feebly basic aromatic amines is achieved by using
- The rocket fule among the following is
- Which of the following can act as both oxidising and reducing agents
- Which of the following is the least stable and its existence is doubtful
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