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Match List- I with List- II.

List-I (Measured values) (A) 0.001213 (B) 2.1×10162.1 \times 10^{16} (C) 3.70 (D) 3000

List-II (Significant figures) (I) 2 (II) 3 (III) 1 (IV) 4

A

A-III, B-II, C-I, D-IV

B

A-III, B-I, C-II, D-IV

C

A-I, B-II, C-IV, D-III

D

A-IV, B-I, C-II, D-III

Step-by-Step Solution

The number of significant figures is determined by standard rules:

  1. (A) 0.001213: Zeros preceding the first non-zero digit are not significant . The digits 1, 2, 1, and 3 are significant, giving a total of 4 significant figures (IV).
  2. (B) 2.1×10162.1 \times 10^{16}: In scientific notation, all digits in the coefficient are significant . The digits 2 and 1 are significant, giving 2 significant figures (I).
  3. (C) 3.70: Zeros at the end of a number are significant if they are to the right of the decimal point . The digits 3, 7, and 0 are significant, giving 3 significant figures (II).
  4. (D) 3000: Terminal or trailing zeros in a number without a decimal point are not significant . Only the digit 3 is significant, giving 1 significant figure (III).

Matching these results yields: A-IV, B-I, C-II, D-III.

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