SOME SIGNIFICANT QUESTION- I

• Q.1 Why we have requirement to balance a chemical equation?
• Q.2. Explain rules for balancing a chemical equation by taking a suit example?
• Q.3. Give short notes about these following -
• (A) Decomposition reaction (B) Double displacement reaction(C) Redox reaction (D)Thermite reaction
• Q.4. What do you mean by Arrhenius concept of Acid and Base? Give its demerits
  
• Q.5. What happens when an acid react with metal?
• Q.6. What is a neutralization reaction? give two examples.
• Q.7. Why non metals form covalent bond?
• Q.8. What do you mean by antacid?
• Q.9. Write the electronic configuration of carbon in its excited state?
• Q10. What is meant by Allotrope ? give classification about allotrope of carbon .
• Q.11. What do you mean isomerism ?
• Q.12. What happens in atomic radii when we move in a period and when we come downwards in a group?
• Q.13. What do you mean by electron negativity ? what happens in this property when we come down in a group?
• Q.14 What do you mean by halogens?