NCERT Solutions for Class 11 Chemistry Chapter 9 Hydrogen
NCERT Solutions for Class 11 Chemistry Chapter 9 Hydrogen Topics and Subtopics in NCERT Solutions for Class 11 Chemistry Chapter 9 Hydrogen : Section Name Topic Name 9 Hydrogen 9.1 Position of Hydrogen in the Periodic Table 9.2 Dihydrogen, H 2 9.3 Preparation of Dihydrogen, H 2 9.4 Properties of Dihydrogen 9.5 Hydrides 9.6 Water 9.7 Hydrogen Peroxide (H 2 O 2 ) 9.8 Heavy Water,D 2 O 9.9 Dihydrogen as a Fuel NCERT Class 11 Chemitry Textbook Questions Solved Question 1. Justify the position of hydrogen in the periodic table on the basis of its electronic configuration. Answer: Hydrogen has been placed at the top of the alkali metal in group, but it is not a member of the group. Its position is not justified properly because of its electronic configuration as (1s 1 ). It can be placed with alkali metals because it also has similar configuration (ns 1 ) as alkali metals. However, it can also be placed along with halogen in group 17 since just like halogen it can acquire inert gas configu...