The set in which compounds


The set in which compounds have different nature is :

  1. $\mathrm{B}(\mathrm{OH})_{3}$ and $\mathrm{H}_{3} \mathrm{PO}_{3}$

  2. $\mathrm{B}(\mathrm{OH})_{3}$ and $\mathrm{Al}(\mathrm{OH})_{3}$

  3. $\mathrm{NaOH}$ and $\mathrm{Ca}(\mathrm{OH})_{2}$

  4. $\mathrm{Be}(\mathrm{OH})_{2}$ and $\mathrm{Al}(\mathrm{OH})_{3}$

Correct Option: , 2


1) $\mathrm{B}(\mathrm{OH})_{3}$ acidic and $\mathrm{H}_{3} \mathrm{PO}_{3}$ acidic

2) $\mathrm{B}(\mathrm{OH})_{3}$ acidic and $\mathrm{Al}(\mathrm{OH})_{3}$ amphoteric

3) $\mathrm{NaOH}$ basic and $\mathrm{Ca}(\mathrm{OH})_{2}$ basic

4) $\mathrm{Be}(\mathrm{OH})_{2}$ amphoteric and $\mathrm{Al}(\mathrm{OH})_{3}$ amphoteric

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