General Science • ChemistryEasy
What is the chemical nature of an aqueous solution of sodium chloride in terms of litmus paper test?
A. It turns red litmus blue
B. It turns blue litmus red
C. It has no effect on red or blue litmus paper✓ Correct Answer
D. It turns both red and blue litmus paper yellow
💡 Solution & Explanation
Sodium chloride is a neutral salt formed by the complete neutralization reaction between a strong acid, hydrochloric acid, and a strong base, sodium hydroxide. In aqueous solution, its ions do not undergo appreciable hydrolysis, resulting in a neutral pH of seven. Consequently, it exhibits no color change on either red or blue litmus paper. Distractors involving color shifts apply only to acidic or basic solutions. Salts of weak acids and strong bases yield alkaline solutions.
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