First slide

Occurrence, Electronic Configuration

Question

Which of the following is correct for boron?

Moderate

A

Boron is fairly rare element
B

In nature, it occurs in all of orthoboric acid, borax and kernite
C

B¹⁰ and B¹¹ exist in 19% and 81% abundance in nature
D

All of the above are correct

Solution

Boron is fairly rare element ,in nature it exist in combined state i.e Orthoboric acid ,Borax and Kernite .
Isotopes of Boron B¹⁰ and B¹¹ exist in 19% and 81% abundance in nature.

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