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State with balanced equations, what happ...

State with balanced equations, what happens when aluminium is reacted with hot concentrated caustic soda solution.

Text Solution

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Hydrogen gas is evolved.
`2Al +2H_(2)O + 2NaOH overset(Delta)rarr 2NaAlO_(2) + 3H_(2) uarr`.
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Knowledge Check

  • What happens when aluminium and zinc salts react with an excess of NaOH

    A
    White precipitate of formed
    B
    White precipitate of both Zn and Al first formed redissolve in excess of `NaOH`
    C
    White precipitate of Al redissolves but of Zn does not
    D
    White precipitate of Zn redissolves and that of Al does not