Chemistry

👨🏻‍🏫 學術台化學

知識就是力量

2009-12-14 3:27 am

Explain
why does zinc react with concentrated sulphuric acid to give out sulphur dioxide rather than hydrogen gas?

更新1:

Is it form 4 syllabus?

更新2:

im a hkdse student... redox reaction will be taught in the next term-.-

回答 (1)

[匿名]

2009-12-14 4:58 am

✔ 最佳答案

Concentrated sulphuric acid is an oxidizing agent it will take reduction in a redox reaction. The reaction between zinc and the concentrated sulphuric acid is a redox reaction but not the common neutralization. The oxidation number of S was reduced from +6(SO4 2-) to +4(SO2).

It is in the CE level

參考: ME

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