Question:
High purity $(>9995 \%)$ dihydrogen is obtained by
High purity $(>9995 \%)$ dihydrogen is obtained by
Updated On: Jul 29, 2024
- reaction of zinc with aqueous alkali.
- electrolysis of acidified water using platinum electrodes.
- electrolysis of warm aqueous barium hydroxide solution between nickel electrodes.
- reaction of zinc with dilute acid.
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The Correct Option is C
Solution and Explanation
High purity dihydrogen is obtained by electrolysis of warm aqueous solution between -electrodes
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Concepts Used:
Dihydrogen
Dihydrogen is the homonuclear diatomic molecule built from two hydrogen atoms. This molecule characterizes a covalent bond between two hydrogen atoms, satisfying each of their required pair configurations.
Structure of Dihydrogen:
The dihydrogen molecule characterizes a single covalent bond between the two hydrogen atoms that comprise it. This molecule has a linear shape and is nonionic in nature. Each hydrogen atom comes up with one electron towards the covalent bond.
Properties of Dihydrogen:
- At Standard Temperature and Pressure (STP), dihydrogen exists in the gaseous state.
- The melting point of H2 is 13.99 Kelvin. Transforming this value to the celsius scale, the melting point of dihydrogen can be expressed as -259.16 degrees celsius.
- The boiling point correlated with dihydrogen corresponds to 20.271 on the Kelvins scale. Transforming this value into the celsius scale, the boiling point of H2 can be represented as -252.879 degrees celsius.
- The latent heat of fusion associated with the H2 molecule correlates to 0.117 kilojoules per mole.
- The latent heat of vaporization (also known as the enthalpy of vaporization) of dihydrogen is equivalent to 0.904 kilojoules per mole.