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Q.

Select the incorrect statement.

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a

HNO2 and H2N2O2 are the oxoacids of nitrogen

b

Contact process is used for the production of nitrous acid

c

NO and NO2 are the intermediates involved in the manufacture of nitric acid

d

98% HNO3 solution  is obtained by treating 68% solution of HNO3 with conc. H2SO4.

answer is B.

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Detailed Solution

Contact process is used for the manufacture of sulphuric acid.
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Select the incorrect statement.