Aluminium is obtained by
Aluminium is obtained by
- A
Reducing $A{l_2}{O_3}$ with coke
- B
Electrolysing $A{l_2}{O_3}$ dissolved in $N{a_3}Al{F_6}$
- C
Reducing $A{l_2}{O_3}$ with chromium
- D
Heating alumina and cryolite
Similar Questions
White fumes appear around the bottle of anhydrous aluminium chloride. Give reason.
White fumes appear around the bottle of anhydrous aluminium chloride. Give reason.
Covalent electron deficient hydride is formed by
Covalent electron deficient hydride is formed by
Identify the correct statement for $B _{2} H _{6}$ from those given below.
$(A)$ In $B _{2} H _{6}$, all $B - H$ bonds are equivalent.
$(B)$ In $B _{2} H _{6}$ there are four $3-$centre$-2-$electron bonds.
$(C)$ $B _{2} H _{6}$ is a Lewis acid.
$(D)$ $B _{2} H _{6}$ can be synthesized form both $BF _{3}$ and $NaBH _{4}$.
$(E)$ $B _{2} H _{6}$ is a planar molecule.
Choose the most appropriate answer from the options given below..... .
Identify the correct statement for $B _{2} H _{6}$ from those given below.
$(A)$ In $B _{2} H _{6}$, all $B - H$ bonds are equivalent.
$(B)$ In $B _{2} H _{6}$ there are four $3-$centre$-2-$electron bonds.
$(C)$ $B _{2} H _{6}$ is a Lewis acid.
$(D)$ $B _{2} H _{6}$ can be synthesized form both $BF _{3}$ and $NaBH _{4}$.
$(E)$ $B _{2} H _{6}$ is a planar molecule.
Choose the most appropriate answer from the options given below..... .
- [JEE MAIN 2022]
Purification of aluminium done by electrolytic refining is known as
Purification of aluminium done by electrolytic refining is known as
- [AIPMT 1999]
Which is true for an element $R$ present in III group of the periodic table
Which is true for an element $R$ present in III group of the periodic table