Boron can be obtained by various methods but not by :

English

Gujarati

Hindi

General Principles and processes of Isolation of Elements

medium

Boron can be obtained by various methods but not by :

thermal decomposition of $B_2H_6$

pyrolysis of $Bl_3$ (Van Arkel)

reducing $BCl_3$ with $H_2$

electrolysis of fused $BCl_3$

Solution

Boron can be obtained by ($i$) thermal decomposition of diborane, ($ii$) pyrolysis of boron triiodide (van Arkel) method and ($iii$) reduction of boron trichloride with hydrogen. However, it cannot be obtained by the electrolysis of fused boron trichloride. This is because electrometallurgy is used for the extraction of highly electropositive metals such as sodium, potassium, magnesium, calcium, and aluminium.

Standard 12

Chemistry

Bessemerisation is carried out for

$I \,:\, Fe,$

$II \,: \,Cu,$

$III \,:\, Al$

$IV\, :\,$ silver

medium

For extraction of sodium from $NaCl,$ the electrolytic mixture $NaCl + Na_3AlF_6 + CaCl_2$ is used. During extraction process, only sodium is deposited on cathode but $K$ and $Ca$ do not because

medium

The metal that can be purified economically by fractional distillation method is:

medium

(JEE MAIN-2021)

Black Jack is an ore of

easy

Which one of the following is a mineral of iron?

easy

(AIPMT-2012)

Boron can be obtained by various methods but not by :

Solution

Similar Questions

Bessemerisation is carried out for $I \,:\, Fe,$ $II \,: \,Cu,$ $III \,:\, Al$ $IV\, :\,$ silver

For extraction of sodium from $NaCl,$ the electrolytic mixture $NaCl + Na_3AlF_6 + CaCl_2$ is used. During extraction process, only sodium is deposited on cathode but $K$ and $Ca$ do not because

The metal that can be purified economically by fractional distillation method is:

Black Jack is an ore of

Which one of the following is a mineral of iron?

Start a Free Trial Now

Bessemerisation is carried out for

$I \,:\, Fe,$

$II \,: \,Cu,$

$III \,:\, Al$

$IV\, :\,$ silver