Alumina is
Alumina is
- A
Acidic
- B
Basic
- C
Amphoteric
- D
None of these
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Assertion : Boron is metalloid.
Reason : Boron shows metallic nature.
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Reason : Boron shows metallic nature.
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The Lewis acid character of boron tri halides follows the order:
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- [JEE MAIN 2023]
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$B{X_3} + N{H_3}\xrightarrow{{R.T}}B{X_3}.N{H_3} + Heat\,of\,adduct\,formation\,\left( {\Delta H} \right)$ The numerical value of $\Delta H$ is found to be maximum for
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For the electrolytic production of aluminium, $(i)$ the cathode and $(ii)$ the anode are made of
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