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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?

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? Correct Answer pink, ruby-red, rose-pink

Polusulphide rubbers give pink colour on treatment with trichloroacetic acid which turns ruby-red solution on boiling, giving rose-pink precipitate on dilution.

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