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Chapter 9: Problem 10

Differentiate between atomic dihydrogen and nascent hydrogen.

Short Answer

Expert verified
Atomic Dihydrogen (H2) is the molecular form of hydrogen made up of two hydrogen atoms linked by a covalent bond, and it is relatively stable. On the contrary, Nascent hydrogen (H) is the atomic form of hydrogen, often produced during a chemical reaction, and is highly reactive due to the presence of an unpaired electron.

Step by step solution

01

Definition of Atomic Dihydrogen

Atomic Dihydrogen refers to the molecular form of hydrogen, represented by the symbol H2. It is the most common form of hydrogen and is composed of two hydrogen atoms linked by a covalent bond.
02

Properties of Atomic Dihydrogen

Atomic dihydrogen is considered a stable molecule. Because of its symmetric form, H2 has nonpolar bonds and is considered a nonpolar molecule. It is colourless, odourless, tasteless, and non-toxic, and is primarily used in the industrial field as a reactant in processes like hydrocracking and hydrodesulphurization.
03

Definition of Nascent Hydrogen

Nascent hydrogen is the atomic form of hydrogen, represented by the symbol H. It is also often referred to as 'newly born' hydrogen as it is produced during a chemical reaction and exists in a highly reactive state.
04

Properties of Nascent Hydrogen

Nascent hydrogen is extremely reactive due to the presence of an unpaired electron. This makes it want to pair up with other atoms or molecules readily. It is often produced during a chemical reaction, typically via the reaction of a metal with an acid. Thanks to its high reactivity, it's often used to carry out various chemical reactions, especially reduction reactions.

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Most popular questions from this chapter

Write complete balanced equations for the following: (a) \(\mathrm{Al}+\mathrm{NaOH}+\mathrm{H}_{2} \mathrm{O}(\mathrm{b}) \mathrm{LiAlH}_{4}+\mathrm{SnCl}_{4}\) (c) \(\mathrm{CaH}_{2}+\mathrm{CH}_{3} \mathrm{OH}\) (d) \(\mathrm{Cd}\left(\mathrm{C}_{2} \mathrm{H}_{5}\right)+\mathrm{LiAlH}_{4}\)

Discuss the spin isomers of hydrogen. Is it possible to obtain pure para- hydrogen?

Discuss the various methods used for the production of dihydrogen.

Give reasons for the following: (a) \(\mathrm{H}^{-}\) is larger than He. (b) NaH is strongly hydrophillic but \(\mathrm{GeH}_{4}\) is weakly hydrophillic. (c) Acetylene reacts with active metals to liberate hydrogen. (d) Ionic hydrides are more dense than the parent metal while interstitial hydrides are less dense than the parent metal. (e) Palladium is used as a catalyst for hydrogenation.

Write balanced equations for the following processes: (a) Electrolysis of water (b) Treatment of sodium hydride with water (c) Treatment of calcium with water (d) Production of \(\mathrm{CH}_{4}\) from a carbide
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