A solution of sodium chloride will turn

Options

A. red litmus blue
B. blue litmus red
C. red litmus orange
D. not change the colour of either red or blue litmus

Explanation

**Step-by-Step Solution:**

1. **Identify the substance**: The question asks about a solution of sodium chloride (NaCl). Sodium chloride is a common salt formed from the neutralization of hydrochloric acid (HCl) and sodium hydroxide (NaOH).

2. **Understand the nature of sodium chloride**: Sodium chloride is a neutral salt because it is derived from a strong acid (HCl) and a strong base (NaOH). When dissolved in water, it dissociates into sodium ions (Na⁺) and chloride ions (Cl⁻).

3. **Know the function of litmus paper**: Litmus paper is used to test whether a solution is acidic or basic. Blue litmus paper turns red in acidic solutions, while red litmus paper turns blue in basic solutions. If the solution is neutral, there will be no color change in either type of litmus paper.

4. **Test sodium chloride solution with litmus paper**: Since sodium chloride solution is neutral, it will not affect the color of either red or blue litmus paper. Therefore, red litmus paper will remain red, and blue litmus paper will remain blue.

5. **Conclusion**: A solution of sodium chloride will not change the color of red or blue litmus paper.

**Final Answer**: A solution of sodium chloride will not change color.

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