Q. If we write a result as then match the items of Column I with Column II and choose the correct option from the codes given below.
Column I (Indication of uncertainty) Column II (Number associated with uncertainty)
A Certain digit is 1 2
B The uncertain digit is 2
C The uncertainty in the last digit would be 3 11

 78  160 Some Basic Concepts of Chemistry Report Error

Solution:

Correct answer is (a)