English

Why do we store silver chloride in a dark coloured bottle?

Advertisements
Advertisements

Questions

Why do we store silver chloride in a dark coloured bottle?

Give reason:

Silver chloride is stored in dark coloured bottles.

Give Reasons
Short Answer
Advertisements

Solution

Silver chloride is a white solid. However, it is very sensitive to sunlight and decomposes in the presence of light to form silver (grey in colour) and chlorine.

\[\ce{2AgCl_{(s)} ->[Sunlight] \underset{Grey}{2Ag_{(s)}} + Cl2_{g)}}\]

In order to avoid action by sunlight, it is kept in a coloured bottle.

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Chemical Reactions and Equations - Exemplar [Page 7]

APPEARS IN

NCERT Exemplar Science Exemplar Class 10
Chapter 1 Chemical Reactions and Equations
Exemplar | Q 34. | Page 7

RELATED QUESTIONS

In the following reaction between lead sulphide and hydrogen peroxide:

\[\ce{PbS_{(s)} + 4H2O2_{(aq)} -> PbSO4_{(s)} + 4H2O_{(l)}}\]

  1. Which substance is reduced?
  2. Which substance is oxidised?

Identify the component oxidised in the following reaction:

\[\ce{H2S + Cl2 -> S + 2HCl}\]


The addition of hydrogen to a substance is called ______ whereas removal of hydrogen is called ______.


You are given the following chemical equation:

\[\ce{Mg_{(s)} + CuO_{(s)} -> MgO_{(s)} + Cu_{(s)}}\]

This equation represents:


Explain the following in term of gain or loss of oxygen with two examples.

Oxidation


Is it essential that oxidation and reduction must occur side by side in a chemical reaction? Explain


State whether the following conversion is oxidation or reduction:

PbO2 + SO2→ PbSO4 


State whether the following conversion is oxidation or reduction:

2Cl- - e-→ Cl2 


Choose terms from the options given in brackets to complete this sentence.

When CuO reacts with hydrogen,………………… is reduced and ……………….is oxidized to ………………….

(CuO, H2, Cu, H2O)

 


Name:

an oxidizing agent that does not contain oxygen.


Explain the term oxidation in term of addition and removal of oxygen/hydrogen with a suitable example. 


Explain the term redox reaction with an example involving the reaction of hydrogen sulphide with chlorine.


Explain the following reaction with their balanced chemical equation.

Hydrogen sulphide reacts with sulphur dioxide.


Balance the given chemical reaction as per the instructions below.

\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]

Oxidation means losing electrons then what is reduction?


\[\ce{MnO2 + 4HCl -> + 2H2O + Cl2}\]

Identify the substance oxidized in the above equation.


When Ag is exposed to air it gets a black coating of ____________.


Which among the following are physical or chemical change?

Burning of Liquefied Petroleum Gas (LPG)


During the reaction of some metals with dilute hydrochloric acid, following observations are made.

The temperature of the reaction mixture rises when aluminium (Al) is added.

Explain this observation giving suitable reason.


What is rancidity?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×