General Principles and processes of Isolation of Elements
easy

નીચેનામાથી કયું એ એલ્યુમિનિયમ ની અયસ્ક નથી ?

A

બોકસાઈટ

B

કોરન્ડમ

C

ઇપ્સોમાઈટ

D

ક્રાયોલાઇટ

Solution

The chief ore of aluminium is bauxite $\left( Al _2 O _3 \cdot 2 H _2 O \right)$. Corundum $\left( Al _2 O _3\right)$ and Cryolite $\left( Na _3 AlF _6\right)$ are also aluminium ores. Epsomite is a hydrous magnesium sulfate ore with formula $MgSO _4 \cdot 7 H _2 O$.

Standard 12
Chemistry

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