CBSE 11th Standard Chemistry Subject Redox Reactions Ncert Exemplar 5 Mark Questions 2021
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CBSE 11th Standard Chemistry Subject Redox Reactions Ncert Exemplar 5 Mark Questions 2021
11th Standard CBSE
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Reg.No. :
Chemistry
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Identify the redox reaction out of the following reactions and identify the oxidising and reducing in them.
(i) 3HCl(aq) + HNO3(aq) \(\longrightarrow \) Cl2(g) +NOCl(g) + 2H2O(l)
(ii) \({ Hgcl }_{ 2 }(aq)+2KI(aq)\longrightarrow { HgI }_{ 2 }(s)+{ 2KCl(aq) }\)
(iii) Fe2O3 (s) + 3CO(g) \(\overset { \Delta }{ \longrightarrow } \)2Fe(s) +3CO2(g)
(iv) PCl3(l)+3H2O(l)⟶3HCl(aq)+H2PO3(aq)
(v) 4NH3(aq) + 3O2(g) \(\longrightarrow \) 2N2(g) + 6H2O(g)(a) -
In Ostwald's process for the manufacture of nitric acid, the first step involves the oxidation of ammonia gas by oxygen gas to give nitric oxide gas and steam. What is the maximum weight of nitric oxide that can be obtained starting only with 10.0 g of ammonia and 20.0 g of oxygen?
(a)
