Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

Which of the following substances turns red litmus paper blue in an aqueous solution?

Answer and explanation

Correct answer: Sodium hydroxide

Sodium hydroxide dissociates in water to produce hydroxide ions, OH⁻. The presence of these ions gives the solution basic properties, including the ability to turn red litmus paper blue. Hydrochloric acid is acidic and would show the opposite litmus behaviour. Sodium chloride solution and distilled water are approximately neutral, so they normally do not produce this colour change. Therefore, option A is correct.

Related tags

ScienceClass10Sodium-HydroxideLitmusBasic-SolutionAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And Behaviour

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.