NCERT Exemplar Class 11 Chemistry Chapter 9 Solutions: Hydrogen
NCERT Exemplar Solutions for Class 11 Chemistry Chapter 9 illustrates hydrogen and its properties. This chapter of NCERT Class 11 Chemistry Exemplar will make you understand how various elements combine with hydrogen to form ionic, molecular, and nonstoichiometric compounds. Other main topics of the chapter include the Position of Hydrogen in the Periodic Table, Preparation of Dihydrogen, Hydrides, Physical and Chemical Properties of Water.
NCERT Exemplar Problems and Solutions for Class 11 Chemistry contain 6 exercises with 76 exemplar problems in total. Solving the questions based on these important topics of the chapter, you will get the basic idea of the properties of hydrogen. The NCERT Exemplar solutions have been prepared by our expert teachers of Chemistry as per the latest syllabus released by CBSE. Thus, referring to these solutions will help you in clearing your doubts and clear the important concepts.
Our NCERT Exemplar Problems for Class 11 Chemistry Chapter 11 consists of easy to learn answers to the exemplar problems given in the textbook. Using these answers and solutions, you can strengthen your CBSE Chemistry exam preparation. So, if you wish to score well in your CBSE exam, then follow the solutions provided by Instasolv now.
Important Topics for NCERT Chemistry Exemplar Solutions Class 11 Chapter 9 – Hydrogen
Electronic Configuration of Hydrogen
The electronic configuration of hydrogen is represented as 1s1. The electron subshells of an atom are entitled with the letters s, p, d, f, with the s as a subshell being closest to its nucleus. Later, the hydrogen atom has only 1 electron, the electron inhabits the one and only s subshell.
The Resemblance of Hydrogen with Alkali Metals
Hydrogen is similar to alkali metals because they have 1 electron in its outermost shell and can form compounds with non-metals. Though it has a non-metallic character, it is a gas and cannot defeat its valence electron.
The Resemblance of Hydrogen with Halogens
Both hydrogen and halogens need one electron to complete their octets. Though, hydrogen can gain one electron to form a nonnegative ion. Also, it is less reactive than halogens. Due to these reasons, hydrogen cannot be positioned with alkali metals or with halogens.
Occurrence of Hydrogen
Hydrogen is the most plentiful component in the world. In a certainly happening sample of hydrogen, there is one atom of deuterium for every 7000 H atoms and one atom of radioactive tritium available for every 1018 H atoms.
Isotopes of Hydrogen
Hydrogen has no neutron, whereas deuterium has one neutron, and tritium has two neutrons. The isotopes of hydrogen have, correspondingly, mass numbers of one, two, and three. Their nuclear symbols are thus 1H, 2H, and 3H. The atoms of these isotopes have one electron to equilibrium the charge of the one proton.
Hard and Soft Water
Hard water refers to water that consists of a considerable quantity of softened minerals. Soft water refers to treated water in which the only ion is sodium. As rainwater falls, it is certainly soft. On the other hand, soft water tastes salty and is now and then not suitable for drinking.
Exercise-wise Discussion of NCERT Chemistry Exemplar Solutions Class 11 Chapter 9 – Hydrogen
Exercise 9.1 – Multiple Choice Questions I
Exercise 9.1 is considered a very important exercise from the entrance exam point of view. It contains a total of 18 exemplar problems. Solving the questions of this exercise will help you understand how clear your concepts are.
Exercise 9.2 – Multiple Choice Questions II
This exercise also contains 9 multiple-choice questions. Practice well to clear your concepts.
Exercise 9.3 – Short Answer Type Questions
This exercise consists of 35 short answer type questions for your practice.
Exercise 9.4 – Match the Following
Exercise 9.4 of Chapter 9 – Hydrogen consists of a total of 4 short answer type exemplar problems. These questions are based on the important topics of the chapter.
Exercise 9.5 – Assertion and Reason Type Questions
In this exercise, there are a total of 2 questions in which you have to choose the correct option out of the choices given in each question.
Exercise 9.6 – Long Answer Type Questions
This exercise consists of a total of 8 exemplar problems based on the primary concept of the chapter. They are long-answer-type-questions where you will find detailed solutions to the problems.
Why Use NCERT Chemistry Exemplar Solutions Class 11 Chapter 9 – Hydrogen by Instasolv?
- Referring to the NCERT Exemplar solutions provided by Instasolv will boost up your confidence level.
- All the problems in NCERT Class 11 Exemplar Book for Chemistry are explained with proper examples and activities related to the questions.
- These solutions are solved in easy to understand language so that you don’t get confused while referring to it.
- You can easily access these solutions online and start your preparation with ease.
- It mostly eradicates the need for any tuition or additional help from teachers.