Oxygen is not released on heating which of the compounds?
Correct answer: A. (NH4)2Cr2O7
- A. (NH4)2Cr2O7
- B. K2Cr207
- C. Zn(CIO3)2
- D. KCIO3
Explanation
Equations for each reaction: A- (NH4)2Cr2O7 (aq) ⇌ N2 (g) + 4 H2O (l) + Cr2O3 (s) [No oxygen released] B- 4 K2Cr2O7(1) ⇌ 4K2CrO4(1) + 2 Cr2O3(s) + 3 O2(g) C- Zn(ClO3)2 ⇌ ZnCl2 + 3O2 D- 2KClO3 (s) ⇌ 2KCl(s) + 3 O2 (g)
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About Redox Reactions
Redox reactions involve oxidation and reduction occurring together, with electrons transferred between species or oxidation numbers changing. The topic covers assigning oxidation states, identifying oxidizing and reducing agents, balancing redox equations by oxidation number or half-reaction methods, and connecting chemical changes with galvanic and electrolytic cells.
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