Number of significant figures in the answer of the following will be:
(29.2-20.2) (1.79 x 105)
1.39
4
3
2
1
Which has maximum number of significant figures?
0.000010
0.216
2.1 x 106
0.021
Name and symbol of the prefixes used with SI units to indicate multiplication by the following exact quantities 103, 10-2, 10-1 and 10-3 respectively are:
k, c, d, m
m, d, c, k
d, k, c, m
k, m, d, c
Which measurement represents the largest quantity?
47.3 mg
4730 ng
4.73 x 10-4 g
4.73 x 103 (g
Which choice best describes the degree of uncertainty in the measurement 16.30 g?
The uncertainty cannot be determined without additional information
The quantity is exact
( 0.10 g
( 0.01 g
What is 0.0970 written inn scientific notation?
970 x 10-4
97 x 10-3
9.70 x 10-2
97.0 x 10-2
The number of significant figures in 0.00210 is:
Five
Six
Four
Three
The decimal equivalent of 1 upto
0.6
four significant figures may be written as:
1.666
1.6666
1.667
01.666
0.00167 is written in three significant figures with scientific notation as:
1.67 x 10-3
167.0 x 10-5
16.7 x 10-4
1.670 x 10-3
17.675 is rounded off to four significant figures as:
17.68
17.67
17.6750
17.7