Class 11th Chemistry NCERT Exemplar Solutions Class 11th Chapter Fourteen Redox Reactions Redox Reactions Chemistry Ncert Solutions Chemistry Class 11th

Some time ago formation of polar stratospheric clouds was reported over Antarctica. Why were these formed? What happens when such clouds break up by warmth of sunlight?

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Alok Kumar Singh | Contributor-Level 10

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This is a Short Answers Type Questions as classified in NCERT Exemplar

Scientists working in the Antarctica region reported that depletion of the ozone layer is commonly termed as an ozone hole over the South Pole in the Antarctic region. It was observed that a unique set of conditions were respons

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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??

$\overset{\overset{+ 4}{{N O}_{2}}}{2} + H_{2} O \to \overset{+ 3}{{H N O}_{2}} + \overset{+ 5}{H N O}_{3}$

$\overset{0}{{C l}_{2}} + H_{2} O \to \overset{- 1}{H C l} + H O C l$

$2 \overset{+ 4}{{C l O}_{2}} + H_{2} O \to \overset{+ 3}{{H C l O}_{2}} + \overset{+ 5}{{H C l O}_{3}}$

$\overset{+ 6}{{C l}_{2}} O_{6} + H_{2} O \to \overset{+ 5}{{H C l O}_{3}} + \overset{+ +^{+}}{{C l O}_{4}}$

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

Kindly go through the solution

(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

Kindly go through the solution

(c) Al

36. Oxidation number ofS in S₂O₈^-2is

(a) -2 (b) -6 (c) +2 (d) +6

Kindly go through the solution

(d) +6

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

Reason: For ions composed of only one atom, the oxidation number is equal to the charge on the ion.

Kindly go through the solution

(a)

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Chemistry NCERT Exemplar Solutions Class 11th Chapter Fourteen 2025

Chemistry NCERT Exemplar Solutions Class 11th Chapter Fourteen 2025

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