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1) write a balanced equation for the reaction of conc.HNO3 when added to copper turnings kept in a beaker.2) write a balanced equation for the reaction of sulphur and hot concentrated nitric acid.3) write the equation for the reaction of dilute nitric acid with copper
Asked by parindu_2006 | 13 Feb, 2018, 08:50: PM
answered-by-expert Expert Answer
1. space space space space Reaction space of space conc. HNO subscript 3 space with space copper space turnings space space space space space Cu space space plus space space 4 HNO subscript 3 space rightwards arrow space Cu open parentheses NO subscript 3 close parentheses subscript 2 space space plus space space 2 straight H subscript 2 straight O space space plus space 2 NO subscript 2 space space 2. space space When space conc. space HNO subscript 3 space reacts space with space sulphur comma space it space oxidises space sulphur space to space give space sulphuric space acid. space space Concentrated space HNO subscript 3 space is space oxidising space agent. space space space space straight S space plus space space 6 HNO subscript 3 space space space rightwards arrow space space straight H subscript 2 SO subscript 4 space space plus space space 2 straight H subscript 2 straight O space space plus space space 6 space NO subscript 2 3. space space space space space Reaction space of space dilute space HNO subscript 3 space with space copper space turnings space space space space space 3 Cu space space plus space space 8 HNO subscript 3 space rightwards arrow space 3 Cu open parentheses NO subscript 3 close parentheses subscript 2 space space plus space space 4 straight H subscript 2 straight O space space plus space 2 NO
Answered by Varsha | 14 Feb, 2018, 10:27: AM

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