हिंदी

Write an Explanation. Endothermic reaction - Science and Technology 1

Advertisements
Advertisements

प्रश्न

Write an Explanation.

Endothermic reaction

परिभाषा
स्पष्ट कीजिए
एक पंक्ति में उत्तर

उत्तर

The chemical reactions which are accompanied by absorption of heat are called endothermic reactions.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 3: Chemical reactions and equations - Write an Explanation

APPEARS IN

एससीईआरटी महाराष्ट्र Science and Technology 1 [English] 10 Standard SSC
अध्याय 3 Chemical reactions and equations
Write an Explanation | Q 2

संबंधित प्रश्न

How will you obtain Ammonia from nitrogen.
Also give balanced equations for the reactions


Define exothermic reactions. Give two examples of each.


Identify the endothermic and exothermic reaction.

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


Complete the following statement.

On heating, hydrated copper sulphate changes its colour from ________ to __________.


Why energy is involved in a chemical change?


State which type of chemical reaction proceeds with the absorption of heat energy.


State the following reaction whether heat is evolved or absorbed – 

water is added to quicklime


Chemical reactions may proceed with evolution of heat. Give an example.


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

exothermic reaction


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

endothermic reaction


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

electrochemical reaction


Supply of energy may be required to initiate a reaction. State the different forms with a suitable example of reactions initiated by the supply of energy.


Differentiate between the following:

Electrolytic decomposition and photochemical decomposition.


Assertion: A drop of petrol when touched with finger gives a chill feeling.

Reason: The above phenomenon is an endothermic one.


Give examples of the endothermic process.


Give examples for the exothermic process.


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.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×