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Solution


Q.

Read the passage carefully and answer the following questions from (i) to (v):

The nature of the covalent bond enables carbon to form a large number of compounds. Carbon has the unique ability to form bonds with other atoms of carbon, giving rise to large molecules. Since carbon has a valency of four, it is capable of bonding with four other atoms of carbon or atoms of some other monovalent element.

 

(ii) The following represent the relation of boiling of alkanes with respect to number of carbon atoms.



 

Which of the following is the correct order for the boiling points of given alkanes
1 CH4 < CH3CH3 < CH3CH2CH3 < CH3CH2CH2CH3  
2 CH4 > CH3CH3 > CH3CH2CH3 > CH3CH2CH2CH3  
3 CH4 >CH3CH3 < CH3CH2CH3 > CH3CH2CH2CH3  
4 CH4 < CH3CH3 > CH3CH2CH3 > CH3CH2CH2CH3  

Ans.

(1)