What is the Colour of K2Cr2O7 ? A. Red B. Green C. Orange D. Yellow Right Answer: C. Orange Share : December 16, 2017 Hassan Ali Chemistry Total 0 Votes: 0 0 Tell us how can we improve this Mcqs? Captcha: + = Verify Human or Spambot ? Related Mcqs Check Below -Ea appears as a potential energy hill between _________ for carrying out the reaction.Which one tells amount of the free fatty acid?Carbohydrate containing aldehyde is called?