Two moist red roses are taken in two containers A and B into which anhydride of sulphurous acid and a greenish yellow coloured gas are passed respectively. What changes are observed With respect to two roses inA and B? How do you account for these changes?

Two moist red roses are taken in two containers A and B into which anh

1.	Two moist red roses are taken in two containers A and B into which anhydride of sulphurous acid and a greenish yellow coloured gas are passed respectively. What changes are observed With respect to two roses inA and B? How do you account for these changes?
Answer» Solution :(i) Identification of reason for DECOLOURIZATION of MEIST ROSES. Identification of the two gases. CHARACTERISTIC property of the above gases. The effect of characteristic property of the above gases on the colour ofroses. Effect of ATMOSPHERIC oxygen on revival of the colour of one of the roses