हिंदी

Which among the following statement(s) is(are) true? ‘Exposure of silver chloride to sunlight for a long duration turns grey due to the formation of silver by decomposition of silver - Science

Advertisements
Advertisements

प्रश्न

Which among the following statement(s) is(are) true? ‘Exposure of silver chloride to sunlight for a long duration turns grey due to

  1.  the formation of silver by decomposition of silver chloride
  2.  sublimation of silver chloride
  3. decomposition of chlorine gas from silver chloride
  4. oxidation of silver chloride

विकल्प

  •  (i) only

  • (i) and (iii)

  • (ii) and (iii)

  •  (iv) only

MCQ

उत्तर

(i) only

Explanation - 

Silver chloride is sensitive to sun light and decomposes slowly to give silver which is grey in colour and chlorine.

`2"AgCl" overset("Sun light")(->)underset(("Grey"))(2"Ag") + "Cl"_2`

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 1: Chemical Reactions and Equations - Exemplar [पृष्ठ २]

APPEARS IN

एनसीईआरटी एक्झांप्लर Science [English] Class 10
अध्याय 1 Chemical Reactions and Equations
Exemplar | Q 8. | पृष्ठ २

वीडियो ट्यूटोरियलVIEW ALL [4]

संबंधित प्रश्न

Balance the following chemical equation:

MnO2  +  HCI  →  MnCI2  +  CI2  +  H2O

 


Which of the following is not an endothermic reaction?

(a) CaCO3 → CaO  +  CO2

(b) 2H2O →2H2 + O2

(c) 6CO2 + 6H2O → C6H12O6  +  6O2

(d) C6H12O6  + 6O2 → 6CO2  + 6H2O


Zinc oxide reacts with carbon, on heating, to form zinc metal and carbon monoxide. Write a balanced chemical equation for this reaction. Name (i) oxidising agent, (ii) reducing agent, in this reaction.

 

Balance the following equation. Also name the product formed.  

K2O + H2O    → KOH 


Write the chemical equation for the following word equation and balance them.

Sodium reacts with water to form sodium hydroxide and hydrogen


Identify the type of reaction taking place of the following case and write the balanced chemical equation of the reaction:
Zinc reacts with silver nitrate to produce zinc nitrate and silver.


Write word equation for the following molecular equation:

\[\ce{NH3 [g] + HCl [g] ⇌ NH4Cl [s]}\]

Word equation:
State which characteristic is observed in the above reaction.

Give an-example of a similar above characteristic, seen between two other gaseous reactants.


Write word equation for the following chemical reaction given below. Also state the observation seen in the case.

\[\ce{Na2SO3 + 2HCl ->[\triangle] 2NaCl + H2O + SO2}\]


What is meant by ‘reactants’ and ‘products’ in a chemical equation?


Write a balanced equation for the following word equation:

Potassium nitrate → Potassium nitrite + Oxygen


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×