Term 3 Carbon and its Compounds Three Marks

9th Standard

    Reg.No. :
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Science

Time : 00:45:00 Hrs
Total Marks : 30
    10 x 3 = 30
  1. Differentiate graphite and diamond

  2. What are saturated and unsaturated compounds called?

  3. Carbon do not form ionic compounds. Why?

  4. What is the valency of carbon in carbon monoxide?

  5. Why are one-time use and throwaway plastics harmful?

  6. What is tetra valency in carbon? Give example.

  7. What is burning?

  8. How can you find resin code on plastic items?

  9. Type of bond Example Class of the compound
    Single bond - 1 - Alkane
    Double bond \(H-\overset { \underset { | }{ H } }{ C } =\overset { \underset { | }{ H } }{ C } -H\) - 2 -
    - 3 - - 4 - Alkyne
  10. What can you do to prevent plastic pollution?

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