Chemical Bonding And Molecular Structure Question 421

Question: Which of these statements is not true-

Options:

A) $ N{O^{+}} $ is not isoelectronic with $ O_2 $

B) B is always covalent in its compounds

C) In aqueous solution, the $ T{l^{+}} $ ion is much more stable than Tl (III)

D) $ LiAlH_4 $ is a versatile reducing agent in organic synthesis.

Show Answer

Answer:

Correct Answer: A

Solution:

  • $ N{O^{+}}=7+8-1=14{e^{-}}. $ $ O_2=16{e^{-}}~ $ i.e not iso-electronic

[b] Boron forms only covalent compounds. This is due to its extremely high ionization energy

[c] Compounds of $ T{l^{+}} $ are much more stable than those of $ T{l^{3+}} $

[d] $ LiAlH_4 $ is a versatile reducing agent in organic synthesis



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