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Q.

In the decomposition of lead (II) nitrate to give lead (II) oxide, nitrogen dioxide and oxygen gas, the coefficient of nitrogen dioxide (in the balanced equation) is

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a

2

b

1

c

3

d

4

answer is D.

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Detailed Solution

 The balanced chemical equation for the decomposition of lead nitrate is

2  Pb(NO3)2→2  PbO  +  4  NO2  +   O2

Hence, the coefficient of nitrogen dioxide NO2 is 4.

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