RRB Technician 2014 Ques 42
Question: When $ SO _2 $ is passed through acidified solution of potassium dichromate, then chromium sulphate is formed, the change in valency of chromium is
Options:
A) $ +4 $ to $ +2 $
B) $ +5 $ to $ +3 $
C) $ +6 $ to $ +3 $
D) $ +7 $ to $ +2 $
Show Answer
Answer:
Correct Answer: C
Solution:
- When $ SO _2 $ is passed through acidified solution of potassium dichromate, then chromium sulphate is formed the change in valency of chromium is $ +6 $ to $ +3 $ .
BETA
