Free account: track your progress — Sign up free

Post-UTME Chemistry 2015 Objective — Question 2

Question 2 of 20 from the Post-UTME Screening (Post-UTME) Chemistry 2015 Objective paper, with the correct answer and a full explanation.

If Sulphur (IV) oxide is passed into a solution of potassium heptaoxodichromate (VI), the resulting solution will be

A. blue
B. colourless
C. greenCorrect
D. purple

Explanation

SO2 reduces the orange dichromate(VI) ion to green Cr3+ in solution.

Sign up free to unlock

Score tracking
Practice history
Saved questions
Progress dashboard
Personalized sessions
Weak-topic breakdown

…and/or go further with premium services and No Ads.

Create free account

More questions from Chemistry 2015 Objective More Chemistry past papers