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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Identify the endothermic and exothermic reaction. CaO+HX2O⟶Ca(OH)X2+Heat

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प्रश्न

Identify the endothermic and exothermic reaction.

\[\ce{CaO + H2O -> Ca(OH)2 + Heat}\]

पर्याय

  • Exothermic reaction

  • Endothermic reaction

MCQ
एक शब्द/वाक्यांश उत्तर
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उत्तर

\[\ce{CaO + H2O -> Ca(OH)2 + Heat}\]- Exothermic reaction

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पाठ 3: Chemical reactions and equations - Exercise [पृष्ठ ४६]

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बालभारती Science and Technology Part 1 [English] Standard 10 Maharashtra State Board
पाठ 3 Chemical reactions and equations
Exercise | Q 8. c. | पृष्ठ ४६

संबंधित प्रश्‍न

State the effect of an endothermic reaction.


Identify the endothermic and exothermic reaction.

\[\ce{2KClO_{3(s)}->[\Delta] 2KCl_{(s)} + 3O2}\]


Identify the endothermic and exothermic reaction.

\[\ce{CaCO_{3(s)}->[\Delta] CaO_{(s)} + CO2}\]


Give scientific reasons.
While preparing dil. Sulphuric acid from concentrated conc. sulphuric acid in the laboratory the concentrated sulphuric acid is, add slowly to water with constant stirring.


Give an example of the following chemical changes.

An exothermic and an endothermic reaction involving carbon as one of the reactants.

 


Complete the statement by filling in the blank with the correct word:

The element molybdenum used in the reaction of nitrogen with hydrogen at elevated temperatures is an example of a ________.


Give an example of an endothermic reaction.


Give an example with a balanced equation, of the following reaction:

exothermic reaction


Give an example with a balanced equation, of the following reaction:

photochemical reaction


Give an example with a balanced equation, of the following reaction:

electrochemical reaction


Select the correct answer from the options given below:

State the gaseous product formed, when

Two gases one of them neutral combines by absorption of light energy.


Respiration is a ______ change.


Mention any two exothermic reactions.


Match the following:

  Colum I   Column II
1. Alloying a. Exothermic change
2. Crystallization b. Periodic change
3. Soap powder + water c. Mixing of molten solids
4. Seasonal changes d. Pure solid

Complete the following table:

Chemical Reactions Name reaction type
\[\ce{C(s) + O2(g) -> CO2(g)}\] (a) ________
\[\ce{Zn(s) + CuSO4(aq) ->}\] (b) _________ Displacement reaction
\[\ce{2Cu(s) + O2(g) ->[heat] 2CuO(s)}\] (c) _________
\[\ce{C(s) + 2H2(g) -> CH4(g)}\] (d) _________
\[\ce{CaO(s) + H2O(l) -> Ca(OH)2(aq) + heat}\] (e) _________
\[\ce{CaCO3(s) + Heat ->}\] (f) _________ Endothermic Reaction

Give scientific reasons.

While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.


Give scientific reason.

While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.


Give scientific reason.

While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is slowly added to water with constant stirring.


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