Chemical Bonding and Molecular Structure - Test Papaer, Chemistry, class 9

 Page 1


 
 
 
Material downloaded from http://myCBSEguide.com and http://onlineteachers.co.in 
Portal for CBSE Notes, Test Papers, Sample Papers, Tips and Tricks 
CBSE TEST PAPER-05 
CLASS - XI CHEMISTRY (Chemical Bonding and Molecular Structure)   
Topic: - Sigma and pi – bond 
 
 
1. What is sigma bond?  [1] 
2. What is pi – bond?  [1] 
3. Why is s– bond stronger than p - bond?  [2] 
4. How many s – and p - bond are there in a molecule of C 2H 4 (ethane )?  [1] 
5. How many s - and p - bonds are there in a molecule of     CH 2 = CH – CH = CH 2 ?  [1] 
6. What type of bond exists in multiple bond (double / triple)?   [1] 
7. What are the different types of s - bond formation?  [2] 
8. What type of bond are formed due to orbital overlap?  [1] 
9. How do covalent bonds form due to orbital overlapping?  [1] 
10. What is zero over lap?  [2]