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प्रश्न
Give a reason why zinc displaces hydrogen from dilute sulphuric acid but copper does not.
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उत्तर
Zinc (more electropositive) and being above [H] inactivity series displace hydrogen from dilute sulphuric acid but copper is below [H] in electrochemical series cannot displace hydrogen from sulphuric acid.
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संबंधित प्रश्न
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Direct combination reaction of sulphur dioxide with water gives ________.
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| List I | List II |
| 1. \[\ce{AB⇌[heat]A + B}\] | A: Double decomposition |
| 2. \[\ce{AB->A + B}\] | B: Thermal dissociation |
|
3. \[\ce{X+Y- + AB+B- ->X+B- + A+Y-}\] |
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| 5. \[\ce{X + Y->[heat]XY - \Delta}\] | E: Decomposition reaction |
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