First slide

13th group or boron group

Question

Which of these statements is not true

Moderate

A

NO ⁺ is isoelectronic with O₂
B

Boron is mainly covalent in its compounds
C

In aqueous solution, the TI⁺ ion is much more stable than Tl (III)
D

LiAlH₄ is a versatile reducing agent in organic synthesis.

Solution

NO⁺ contains 14 electrons while O₂contains 16 electrons. These are not isoelectronic.

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