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What is rhe answer SEC_ÄION 1 go Marks) this Question I a) From the list Of gases given, choose the gas/ gases which match the description Gases Ammonia. nitrogen dioxide. methane. nitric oxidc. hydrogen, omygen. nitrogen. (i) The gas liberated When conc. HC' reacts with potassium dichromate (ii) The gas Which burns with a green flame and reduces a heated metallic oxide to a A gas which is absorbed by ironlll' sulphate solution to give an addition compound. (iv) TWO gases which react in the presence of copper catalyst at high to give ( v) of of & KOH — v&tS With

Dear Student,
1. H C l space plus space K subscript 2 C r subscript 2 O subscript 7 space equals space C l subscript 2 space plus space C r C l subscript 3 space plus space K C l space plus space H 2 O. Hence, Chlorine gas will be liberated.
2. x H subscript 2 space plus thin space M O x space rightwards arrow M space plus x H subscript 2 O space. Hence, Hydrogen is the gas which burns in green colour and reduces a metal oxide to metal.
3. NO + FeSO4 →Fe(NO)SO4. Hence, Nitric oxide is the gas which undergoes addition reaction with FeSO4.
4. CH4 + O2 → Cu@200CCH3OH. Hence, Methane and oxygen are the two gases.
5. 2CH3CH2Br + 2KOH + Na →2C2H5ONa + 2KBr + H2. Hence, Hydrogen gas is liberated.
Regards

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