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
1 reads0 ratings0 helpful

When water is added to calcium oxide, calcium hydroxide is formed and the container becomes hot. Which two types of reaction does this represent?

Answer and explanation

Correct answer: Combination and exothermic

The reaction is \(\mathrm{CaO + H_2O \rightarrow Ca(OH)_2}\). Two reactants combine to form a single product, calcium hydroxide, so it is a combination reaction. The container becoming hot indicates that heat is released; therefore, it is also exothermic. In contrast, a decomposition reaction involves one compound breaking down into two or more products.

Related tags

ScienceClass10Chemical ReactionsCalcium OxideCombination ReactionExothermic Reaction

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.