Q.

Reaction of BaCl2+Na2SO4 proceeds to completion. It represents is which of the following types of reaction?

i) Decomposition reaction              ii) Displacemnent reaction 

iii) Precipitation reaction                  iv) Double displacement reaction 

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a

Only i 

b

iii & iv

c

ii & iii 

d

Only iv 

answer is C.

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Detailed Solution

This is an example of double displacement reaction in which ion exchange takes place and thus barium sulfate is formed as a precipitate and sodium chloride as a aqueous solution. So this is also precipitation reaction.

BaCl2+Na2SO4→BaSO4+2NaCl

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