What colour change is observed when few drops of alcoholic NaOH is add – McqOptions

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1.	What colour change is observed when few drops of alcoholic NaOH is added to polyvinyl chloride solution?
A.	tcolourless to red
B.	tcolourless to yellow
C.	tcolourless to blue
D.	tcolourless to grey
Answer» C. tcolourless to blue

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