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Class X Sciences

[papers from previous years]

(a) Why is sulphuric acid called ‘King of Chemicals’?
(b) Describe the three chemical reactions that take place during
the conversion of sulphur dioxide to sulphuric acid in the
‘Contact Process’.
(c) Why should water be never added dropwise to concentrated
sulphuric acid?


A)  because it is used in the manufacture of many substance.
c) coz its highly exothermic
b) not in our syllabus
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Because it reacts quickly.
if we add water to sulphric acid it will get burnt
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