• Skip to main content
  • Skip to secondary menu
  • Skip to primary sidebar

Class Notes

Free Education for All

  • Class 1-5
  • Class 6
  • Class 7
  • Class 8
  • Class 9
  • Class 10
  • Class 11
  • Class 12
  • NCERT Solutions
    • NCERT Books

atomicity

Avogadro’s hypothesis

Last Updated on March 20, 2019 By Mrs Shilpi Nagpal 1 Comment

​Berzelius a Swedish chemist, gave a hypothesis called Berzelius hypothesis which states that : Equal volume of all gases under similar conditions of temperature and pressure contain equal number of atoms. For Ex: Hydrogen + Chlorine ----------------> 2 Hydrogen chloride gas 1 vol                1 vol                                     2 vol n atoms            n … [Read more...] about Avogadro’s hypothesis

Classification of matter

Last Updated on April 23, 2020 By Mrs Shilpi Nagpal 6 Comments

matter

Matter ​Matter is defined as anything that occupies space and possesses mass. Classification of Matter (1) Physical classification (a) Solid (b) Liquid (c) Gases                  Solid                   Liquid                          Gases (1) They have fixed shape and volume They do not have fixed shape but have fixed volume They do not have fixed … [Read more...] about Classification of matter

Molecules

Last Updated on March 20, 2019 By Mrs Shilpi Nagpal Leave a Comment

Question 1 What is a molecule.Give example? Question 2 How do atoms usually exist? Question 3 Why atoms form molecules or ions? Question 4 Define covalent bond? Question 5 What is meant by molecule of an element? Question 6 What is meant by molecule of a compound? Question 7 Define the term atomicity? Question 8 What are monoatomic molecules.Give … [Read more...] about Molecules

Primary Sidebar

Recent Posts

  • समास
  • Terms used in Coordination compounds
  • Werner’s Coordination Theory
  • Coordination Compounds
  • Vowels and Consonants
  • Economics Chapter 5 Consumer Rights – Notes & Study Material
  • Prefix and Suffix
  • Economics Chapter 4 Globalisation and The Indian Economy – Notes & Study Material
  • Diphthongs
Copyright © 2016-2021 | About Us | Contact Us | Privacy Policy | Facebook | Pinterest | Twitter