3(d)
Fill in the blanks using the appropriate words given below:
(Sulphur dioxide, Nitrogen dioxide, Nitric oxide, Sulphuric acid)
(i) Cold, dilute nitric acid reacts with copper to give ...............
(ii) Hot, concentrated nitric acid reacts with sulphur to form ...............
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(i) Cold, dilute nitric acid reacts with copper to given nitric oxide.
(ii) Hot, concentrated nitric acid reacts with sulphur to form nitrogen dioxide.