Boron can be obtained by various methods but not by

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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 $BI_3$ (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

Formation of $Ni(CO)_4$ and subsequent its decomposition into $Ni$ and $CO$ (recycled) makes basis of Mond's process

$Ni + 4CO \xrightarrow{{{T_1}}} Ni(CO)_4 \xrightarrow{{{T_2}}} Ni + 4CO$

$T_1$ and $T_2$ are :

medium

The idea of froth floatation method came from a person $X$ and this method is related to the process $Y$ of ores. $X$ and $Y$, respectively, are

medium

(JEE MAIN-2019)

The ellingham diagram of a certain metal $M$ is represented in the figure the point $A$ and $B$ respectively correspond to

easy

Reagent used in Bayer's process of concentration of bauxite ore is :

easy

Thermite is a mixture of

easy

Boron can be obtained by various methods but not by

Solution

Similar Questions

Formation of $Ni(CO)_4$ and subsequent its decomposition into $Ni$ and $CO$ (recycled) makes basis of Mond's process $Ni + 4CO \xrightarrow{{{T_1}}} Ni(CO)_4 \xrightarrow{{{T_2}}} Ni + 4CO$ $T_1$ and $T_2$ are :

The idea of froth floatation method came from a person $X$ and this method is related to the process $Y$ of ores. $X$ and $Y$, respectively, are

The ellingham diagram of a certain metal $M$ is represented in the figure the point $A$ and $B$ respectively correspond to

Reagent used in Bayer's process of concentration of bauxite ore is :

Thermite is a mixture of

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Formation of $Ni(CO)_4$ and subsequent its decomposition into $Ni$ and $CO$ (recycled) makes basis of Mond's process

$Ni + 4CO \xrightarrow{{{T_1}}} Ni(CO)_4 \xrightarrow{{{T_2}}} Ni + 4CO$

$T_1$ and $T_2$ are :