question for all kvians.
An element ‘A’ exists as a yellow solid in standard state . It forms a volatile
hydride ‘B’ which is a foul smelling gas and is extensively used in qualitative
analysis of salts. When treated with oxygen , ‘B’ forms a oxide ‘C’ which is
colourless and pungent smelling gas. The gas when passed through acidified
KMnO4Solution , decolourises it. ‘C’ gets oxidised to another oxide ‘D’ in the
presence of heterogeneous catalyst . Identify A,B,C,D and also give the
chemical equations of reaction of ‘C’ with acidified KMnO4 solution and for
conversion of ‘C’ in to ‘D’.
Answers
Answered by
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Virzin accepts your challenge, get ready to lose..XD
PS: I am an ex-kvian so i am qualified to answer this question
A=S8 (suplhur)
B=H2S
C=SO2
D=SO3
For the equations refer NCERT chapter D and F block elements
How did i get this answer:
first method:Google it...XD
PS: just kidding ...didn't copy it from the web
second method: i know that sulphur is yellow in colour and used in labs extensively for conc. acid test and dil acid test and other tests.
third method: as soon as i saw pungent smell with colourless gas i confirmed it is SO2. And when i read it was oxidised by KMnO4 then i became totally sure of it.
Hope it helps.
Btw i am an old acquaintance of u whom u had blocked once. I apologize for anything rude that i did.
Good day.
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