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 :
$(a)-(ii), (b)-(ii), (c)-(iii), (d)-(ii), (e)-(iii)$
$(a)-(ii), (b)-(iii), (c)-(ii), (d)-(i), (e)-(iii)$
$(a)-(ii), (b)-(ii), (c)-(iii), (d)-(i), (e)-(iii)$
$(a)-(ii), (b)-(i), (c)-(ii), (d)-(iii), (e)-(iii)$
$N{a_2}{B_4}{O_7}.10{H_2}O \xrightarrow{\Delta } X + NaB{O_2} + {H_2}O$
$X + C{r_2}{O_3}\xrightarrow{\Delta }Y$ (Green coloured)
$X$ and $Y$ are
Alumina is
For compound having the formula $GaAlCl _4$, the correct option from the following is
Given below are two statements :
Statement $I$ : Boron is extremely hard indicating its high lattice energy
Statement $II$ : Boron has highest melting and boiling point compared to its other group members.
In the light of the above statements, choose the most appropriate answer from the options given below
Explain atomic radius of elements of boron family.