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

Why is plaster of Paris kept away from moisture?

Answer and explanation

Correct answer: It can take up water and turn into hard gypsum

Plaster of Paris is calcium sulfate hemihydrate, CaSO₄·½H₂O. Moisture supplies water that converts it into gypsum, calcium sulfate dihydrate, according to CaSO₄·½H₂O + 1½H₂O → CaSO₄·2H₂O. This hydration causes the material to set and become hard. Consequently, exposure to moisture can spoil its usefulness during storage, so it is kept in moisture-proof packaging. Option A is correct.

Related tags

ScienceClass10Plaster-Of-ParisGypsumHydrationSaltsAcidsBasesAnd SaltsAcids Bases And Salts

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.