Quick practice
Question 1 of 5
Fill in the blank appropriately. (Rajyaseva Pre 2013)
A trap laid for apprehending a Govt. employee taking bribe used phenolphthalein powder coated currency notes. A solution of sodium carbonate sprinkled on the notes must turn______ for lending proof for the crime.
A
red
B
blue
C
black
D
purple
Get unlimited practice with MPSC subscription
Boost your performance with adaptive practice tests
Practice every concept in the syllabus
Compare your speed and accuracy with your peers
Download the app and practice on the go