Question

Q1) what do you mean by accuracy of an instrument? Write down the accuracy of the followings:
a) measuring cylinder.
b)burette.
c) metre rule.
d) Vernier calipers.
Q2) what do the symbols for the following substances suggest?
a) irritating substances
b) flammable substances.
Q3) we must not pour unused chemical back into the container. Why?

Answer 1

Explanation:

Definition: Accuracy is the ability of the instrument to measure the accurate value. In other words, it is the closeness of the measured value to a standard or true value. The accuracy can be obtained by taking the small readings. The small reading reduces the error of the calculation.