Kernite and cryolite are the minerals of two elements X and Z . Respectively X and Z are

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Kernite and cryolite are the minerals of two elements X and $\mathrm{Z}$. Respectively $\mathrm{X}$ and $\mathrm{Z}$ are

ChemistryGeneral Principles and Processes of Isolation of MetalsTS EAMCETTS EAMCET 2023 (13 May Shift 1)

Options:

A $\mathrm{B}, \mathrm{Ga}$
B $\mathrm{B}, \mathrm{Al}$
C $\mathrm{Al}$, In
D $\mathrm{B}, \mathrm{Tl}$

Solution:

1583 Upvotes Verified Answer

The correct answer is: $\mathrm{B}, \mathrm{Al}$

Kernite $=\mathrm{Na}_2 \mathrm{~B}_4 \mathrm{O}_6(\mathrm{OH})_2 \cdot 3 \mathrm{H}_2 \mathrm{O}$ Cryolite $=\mathrm{Na}_3 \mathrm{AlF}_6$

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