Question

The total number of zeros, that are significant in the number 0.01020 × 10^4 is________.

Answer 1

Answer:

The total number of significant figures is 2.

Explanation:

According to significant number rules, zeroes are significant if:

• When it is between two non-zero digits.
• zeroes after the decimal point are significant.
• zeroes before significant figures are not significant.
• zeroes used to fix decimal points are not significant.

• trailing zeroes without decimal are not significant.

in 0.01020×10⁴ first 2 zeroes are not significant.

zero between 1 and 2 is significant.

last zero is also significant.

all other zeroes are non-significant.

∴The total number of significant figures is 2.