NCERT Solutions for Class 11

NCERT Solutions for Class 11 Chemistry Chapter 9 Free PDF Download

NCERT Solutions for Class 11 Chemistry Chapter 9 Hydrogen

Class 11 hydrogen ncert solutions are chapter-wise and exercise-wise solutions which help the students to prepare in the best way for their exams. Class 11 hydrogen ncert solutions are the study of matter, about its composition, properties, and structure, etc.

This subject requires a clear understanding of the concepts. Class 11 hydrogen ncert solutions consist of structured questions along with detailed explanations to learn and understand concepts easily. Our Class 11 hydrogen ncert solutions will provide the students with a complete grasp over the subject and chapter.

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CBSE Class 11 Hydrogen NCERT Solutions

This chapter is aiming to make students accustomed to the properties, reactions, and uses of hydrogen and other relative factors of hydrogen. Our Class 11 hydrogen ncert solutions will help you to study chapter comprehensively.

class 11 hydrogen ncert solutions

Sub-topics covered under NCERT Solutions for Class 11 Chemistry Chapter 9

  • 9.1 Position of Hydrogen in the Periodic Table
  • 9.2 Dihydrogen
  • 9.2.1 Occurrence
  • 9.2.2.Isotopes of Hydrogen
  • 9.3 Preparation of Dihydrogen
  • 9.3.1 Laboratory Preparation of Dihydrogen
  • 9.3.2 Commercial Production of Dihydrogen
  • 9.4 Properties of Dihydrogen
  • 9.4.1 Physical Properties
  • 9.4.2 Chemical Properties
  • 9.4.3 Uses of Dihydrogen
  • 9.5 Hydrides
  • 9.5.1 Ionic or Saline Hydrides
  • 9.5.2 Covalent or Molecular Hydride
  • 9.5.3 Metallic or Non-stoichiometric (Or Interstitial ) Hydrides
  • 9.6 Water
  • 9.6.1 Physical Properties of Water
  • 9.6.2 Structure of Water
  • 9.6.3 Structure of Ice
  • 9.6.4 Chemical Properties of Water
  • 9.6.5 Hard and Soft Water
  • 9.6.6 Temporary Hardness
  • 9.6.7 Permanent Hardness
  • 9.7 Hydrogen Peroxide
  • 9.7.1 Preparation
  • 9.7.2 Physical Properties
  • 9.7.3 Structure
  • 9.7.4 Chemical Properties
  • 9.7.5 Storage
  • 9.7.6 Uses
  • 9.8 Heavy Water
  • 9.9 Dihydrogen as a Fuel.

NCERT Solutions for Class 11 Chemistry Chapter 9:

Class 11 hydrogen ncert solutions to chapter 9 will give the students knowledge about the position of hydrogen in the periodic table, dihydrogen, occurrence, isotopes of hydrogen, preparation of hydrogen, etc.

Let us discuss the sub-topics in detail.

9.1 Position of Hydrogen in the Periodic Table

In the periodic table, Hydrogen appears in the first position.

9.2 Dihydrogen

9.2.1 Occurrence

Dihydrogen is the very much abundant element in the universe which is 70% and is the principal element in the solar atmosphere.

9.2.2 Isotopes of Hydrogen

Hydrogen has three isotopes: Protium, Deuterium, and Tritium. Isotopes have the same electronic configuration due to this they have almost the same chemical properties.

9.3 Preparation of Dihydrogen

9.3.1 Laboratory Preparation of Dihydrogen

This topic gives the process of preparing Hydrogen in the lab.

9.3.2 Commercial Production of Dihydrogen

This topic gives the process of preparing the Hydrogen for commercial purposes.

9.4 Properties of Dihydrogen

9.4.1 Physical Properties

Dihydrogen is a colorless, odorless, tasteless, combustible gas. It is lighter than air and not soluble in water.

9.4.2 Chemical Properties

The is determined, to a large extent, by Bond dissociation enthalpy determines the chemical behavior of dihydrogen

9.4.3 Uses of Dihydrogen

The dihydrogen is in the synthesis of ammonia which is used in the manufacture of nitric acid, nitrogenous fertilizers, and Vanaspati fat and bulk organic chemicals like methanol.

9.5 Hydrides

9.5.1 Ionic or Saline Hydrides

These are stoichiometric compounds of dihydrogen with most of the s-block elements which are highly electropositive in character.

9.5.2 Covalent or Molecular Hydride

Dihydrogen forms molecular compounds most of the p-block elements. Molecular hydrides are further classified into electron-deficient, electron-precise, and electron-rich hydrides.

9.5.3 Metallic or Non-stoichiometric Hydrides

Many d-block and f-block elements form these. This property has a high potential for hydrogen storage and as a source of energy.

9.6 Water

9.6.1 Physical Properties of Water

It is a colorless and tasteless liquid.

9.6.2 Structure of Water

It will discuss the chemical structure of water.

9.6.3 Structure of Ice

At atmospheric pressure, water is in crystalline with the hexagonal form. And at very low temperatures it condenses to cubic form.

9.6.4 Chemical Properties of Water

Water reacts with a large number of substances.

9.6.5 Hard and Soft Water

Hard water does not give lather with soap. Soft water is free from soluble salts of calcium and magnesium and is giving lather with soap easily.

9.6.6 Temporary Hardness

Temporary hardness exists because of the presence of magnesium and calcium hydrogen carbonates. It can be removed by boiling and Clark’s method.

9.6.7 Permanent Hardness

It is due to the presence of soluble salts as chlorides and sulfates of magnesium and calcium.  Calgon’s method can remove this hardness.

9.7 Hydrogen Peroxide

9.7.1 Preparation

There are various methods to prepare Hydrogen Peroxide. Some methods are here.

9.7.2 Physical Properties

In the pure state, it is an almost colorless (very pale blue) liquid.

9.7.3 Structure

Hydrogen peroxide has a non-planar structure.

9.7.4 Chemical Properties

It acts as an oxidizing as well as a reducing agent in both acidic and alkaline media.

9.7.5 Storage

It is stored in wax-lined glass or plastic vessels in dark.

9.7.6 Uses

It is used like hair bleach, mild disinfectant, antiseptic, bleaching agent, etc.

9.8 Heavy Water

It works as a moderator in nuclear reactors and in exchange reactions.

9.9 Dihydrogen as a Fuel

Dihydrogen releases large quantities of heat on combustion, so it is a popular fuel alternative.

You can download NCERT Solutions for Class 11  Chemistry Chapter 9 by clicking on the download button below

ncert solutions for class 11 chemistry chapter 9 pdf download

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