The number of significant figures is 10.3406 g in :

Options

A. 2
B. 3
C. 6
D. 4

Answer

To determine the number of significant figures in the measurement 10.3406 g, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the number**: We are given the number 10.3406 g.

2. **Locate the first non-zero digit**: The first non-zero digit in this number is '1'.

3. **Count all digits from the first non-zero digit**:
- Start counting from '1':
- 1 (first non-zero)
- 0 (between first non-zero and second non-zero)
- 3 (second non-zero)
- 4 (third non-zero)
- 0 (between third and fourth non-zero)
- 6 (fourth non-zero)

Therefore, the digits counted are: 1, 0, 3, 4, 0, 6.

4. **Include all digits in the count**:
- All digits, including zeros between non-zero digits and the trailing digits, are counted as significant figures.

5. **Total significant figures**:
- The total count of significant figures in 10.3406 g is 6.

### Final Answer:
The number of significant figures in 10.3406 g is **6**.

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