In Hall’s process, the main reagent is mixed with
$NaF$
$N{a_3}Al{F_6}$
$Al{F_3}$
None of these
Why is boric acid considered as a weak acid ?
Acedic strength of Boron trihalide are in order of
Which one is a pseudo alum
In $B_2H_6$
Match List$-I$ with List$-II :$
List$-I$ | List$-II$ |
$(a)$ $\mathrm{NaOH}$ | $(i)$ Acidic |
$(b)$ $\mathrm{Be}(\mathrm{OH})_{2}$ | $(ii)$ Basic |
$(c)$ $\mathrm{Ca}(\mathrm{OH})_{2}$ |
$(iii)$ Amphoteric |
$(d)$ $\mathrm{B}(\mathrm{OH})_{3}$ | |
$(e)$ $\mathrm{Al}(\mathrm{OH})_{3}$ |
Choose the most appropriate answer from the option given below :