In the thermite process the reducing agent is
$Al$
$C$
$Mg$
$Na$
(a) $Al$ is used as reducing agent in thermite process.
Which of the following is not true about potash alum
Anhydrous $AlCl_3$ is formed in
Diborane $(B_2H_6)$ reacts independently with $O_2$ and $H_2O$ to produce, respectively
Aluminum dissolves in mineral acids and aqueous alkalis and thus shows amphoteric character. A piece of aluminum foil is treated with dilute hydrochloric acid or dilute sodium hydroxide solution in a test tube and on bringing a burning match stick near the mouth of the test tube, a pop sound indicates the evolution of hydrogen gas. The same activity when performed with concentrated nitric acid, reaction doesn't proceed. Explain the reason.
The weakest Lewis acid is
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