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Q.

Which of the following is not an example of a compound?


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a

Sulphuric dioxide

b

Chalk

c

Lead

d

Sulphuric acid

answer is C.

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Detailed Solution

Lead is not an example of a compound.
Lead is an element and it is made of only one similar type of atom. On the other hand, compounds are made up of different atoms in a fixed ratio. For example sulphuric acid(H2SO4), calcium carbonate (CaCO3) sulphur dioxide (SO2) are compounds whereas lead (Pb) is an element. Compounds are formed by the sharing of electrons with each of the different atoms present in it.
 
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