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CBSE
Class 11 Chemistry
Redox Reactions Chapter 8
Quiz 1
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2NO2(g) + 2OH-(aq) → NO2- (aq) + NO3-(aq) + H2O(I) is an example of
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Metal displacement Reaction
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Combination Reaction
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Displacement Reaction
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Disproportionation Reaction
Pick the odd one out
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Combination redox reaction
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Catalysis redox reaction
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Displacement redox reaction
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Decomposition redox reaction
A substance (atom, ion or molecule) which can readily accept electrons from other substances is called
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Oxidising agent
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Reducing agent
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None of them
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both a and b
Those reactions in which oxidation and reduction takes place simultaneously are known as
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Redox reaction
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Addition reaction
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Chemical reaction
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None of the above
Which of the following is disproportionation reaction?
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CaCO3 (s) → CaO(s) + CO2(g)
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C(s) + O2 (g) → CO2(g)
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CuSO4(aq) + Zn (s) → Cu(s) + ZnSO4 (aq)
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4 KClO3 → 3KClO4 + KCl
According to classical idea of redox reactions the given example is of2 Mg(s) + O2 (g) → 2 MgO(s)
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Oxidation
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Reduction
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Redox reaction
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All the above
In 2Na(s) + Cl2 → 2 NaCl (s) ; The oxidising agent is
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Sodium
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Chlorine
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Sodium chloride
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None of these
CuSO4 (aq) + Zn (s) → Cu (S) + ZnSO4 (aq) is an example of
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Metal displacement reaction
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Disproportionation reaction
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Combination reaction
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Non-metal displacement
Nitrous Acid acts as a:
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Reducing agent
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Oxidising agent
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Oxidising as well as reducing agent
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None of the above
The reaction 2Na(s) + 2H2O(I) → 2NaOH(aq) + H22(g) is
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Displacement reaction
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Combination reaction
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Double displacement reaction
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Decomposition reaction
0 h : 0 m : 1 s
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