Polysulphide rubbers when treated with trichloroacetic acid imparted colour X, which turned to colour Ysolution on boiling and then colour Z precipitate on dilution. Which set of colours represent X, Y, Z, respectively?

Polysulphide rubbers when treated with trichloroacetic acid imparted c

1.	Polysulphide rubbers when treated with trichloroacetic acid imparted colour X, which turned to colour Ysolution on boiling and then colour Z precipitate on dilution. Which set of colours represent X, Y, Z, respectively?
A.	pink, red-brown, grey
B.	pink, ruby-red, rose-pink
C.	pink, red-brown, yellow
D.	pink, ruby-red, yellow
Answer» C. pink, red-brown, yellow

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Polysulphide rubbers when treated with trichloroacetic acid imparted colour X, which turned to colour Ysolution on boiling and then colour Z precipitate on dilution. Which set of colours represent X, Y, Z, respectively?

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