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Gives reasons as to why : (i) almost 9...

Gives reasons as to why :
(i) almost 90 % of all known compunds are organic in nature.
(ii) it is dangerous to burn methane in an insufficient supply of air.

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A harmful poisonous gas is formed.
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ICSE-SELF ASSESSMENT PAPER 4-Section -II
  1. Consider the section of the periodic table given below: Note: In...

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  2. Consider the section of the periodic table given below. Note: In ...

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  3. Consider the section of the periodic table given below: Note: In...

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  4. Consider the section of the periodic table given below: Note: In...

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  5. Consider the section of the periodic table given below. Note: In ...

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  6. Find the odd one out and explain your choice (note:valency is not a cr...

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  7. Find the odd one out and explain your choice (note:valency is not a cr...

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  8. Find the odd one out in each case and explain your choice   i] C3H8, ...

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  9. Select odd one out from the following list of compounds. Formic a...

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  10. Find the odd one out and explain your choice : CH4 , CO2 , C2 H4 , C...

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  11. Gives reasons as to why : (i) almost 90 % of all known compunds are ...

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  12. Choose the correct word/phrase from within the brackets to complete th...

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  13. Complete the following chemical equations : CH3 OH + Na to

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  14. Complete the following chemical equations : CH3 COO Na + NaOH to

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  15. Complete the following chemical equations : Pb3 O4 + 8HCl to

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  16. Complete the following chemical equations : C2 H2 + H2 overset(Ni)t...

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  17. Draw the branched structural formula of the following organic compound...

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  18. Draw the structure of the following compounds: 1,2-dichlorobutane

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  19. Draw the structural formula for the following compounds : Propanal

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  20. Draw the structure of the following compound: Pentanoic acid

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