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Class 11thRedox ReactionsRedox ReactionsChemistryNcert Solutions Chemistry Class 11th

8.28. Arrange the following metals in the order in which they displace each other from the solution of their salts.

Al, Cu, Fe, Mg and Zn.

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10 months ago

Based on the relative positions of these metals in the activity series, the correct order is Mg, Al, Zn, Fe, Cu.

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How many of these compounds will undergo disproportionation on hydrolysis? CO?, NO?, Cl?, F?, ClO?, Cl?O?, N?O?, SO?, P?O??

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2 N O 2 + 4 + H 2 O → H N O 2 + 3 + H N O + 5 3

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40. Best reducing agent is:
(a) He              (b) Be           (c) Li            (d) Al

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(c) Li

37. Which element is considered to have oxidation number of +3 in all its compounds?

(a) Be              (b) Li             (c) Al         (d) Sc

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(c) Al

36. Oxidation number ofS in S2O8-2 is

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(d) +6

32. Assertion: Na+ ion has an oxidation number of +1, Mg2+ ion, +2, Fe3+ ion, +3, Cl– ion, –1, O2– ion, –2; and so on.

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(a)

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Chemistry Redox Reactions 2025

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