Q5 of 80 Page 115

The diagram shows the molecule, ethyl propanoate.


How many bonding pairs of electrons are there in the molecule?

Number of C-H bonds = 10 = 10 bond pairs (bp) of electrons


Number of C-C bonds = 3 = 3 bp of electrons


Number of C-O bonds = 2 = 2 bp of electrons


Number of C=O bonds = 1 = 2 bp of electrons


Total number of bp = 10+3+2+2 = 17

More from this chapter

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3

C4+ does not exist but Pb4+ exists although both belong to the same group. This is because

I. size of carbon is much smaller than Pb. II. large amount of energy is needed in case of carbon.


III. of inert pair effect.


IV. nucleus cannot hold such a large number of electrons.


The correct statement(s) is/are

 4

The structures of three hydrocarbons are given below


Which statement is correct for all the above three compounds?

 6

Which compound has an addition reaction with - chlorine?

 7

One mole of a hydrocarbon X reacted completely with one mole of hydrogen gas in the presence of a heated catalyst. What could be the formula of X?