Medium
Describe an activity to show a decomposition reaction in which light is used to decompose a reactant. Write the chemical equation of the reaction and state its one use.
(N/A) $(i)$ Take $2 \, g$ of silver chloride in a china dish.
(ii) Place this china dish in sunlight for some time.
(iii) Observe the colour of silver chloride after some time. Silver chloride turns grey in sunlight due to the decomposition of $AgCl$ into $Ag$ and $Cl_2$.
Chemical equation:
$2AgCl(s) \xrightarrow{\text{Sunlight}} 2Ag(s) + Cl_2(g)$
Use: This reaction is used in black and white photography.
(ii) Place this china dish in sunlight for some time.
(iii) Observe the colour of silver chloride after some time. Silver chloride turns grey in sunlight due to the decomposition of $AgCl$ into $Ag$ and $Cl_2$.
Chemical equation:
$2AgCl(s) \xrightarrow{\text{Sunlight}} 2Ag(s) + Cl_2(g)$
Use: This reaction is used in black and white photography.
Explore More
Similar Questions
What happens when a piece of aluminium metal is added to dilute hydrochloric acid?
Easy
View Solution"$A$ solution of potassium chloride when mixed with silver nitrate solution, an insoluble white substance is formed".
$(i)$ Translate the above statement into a chemical equation.
$(i)$ Translate the above statement into a chemical equation.
Medium
View SolutionTranslate the following statements into chemical equations and then balance them.
$(a)$ Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.
$(b)$ Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.
$(a)$ Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.
$(b)$ Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.
Medium
View SolutionBalance the following chemical equations and identify the type of chemical reaction.
$(a)$ $TiCl_4(l) + Mg(s) \to Ti(s) + MgCl_2(s)$
$(b)$ $CaO(s) + SiO_2(s) \to CaSiO_3(s)$
$(c)$ $H_2O_2(l) \xrightarrow{UV} H_2O(l) + O_2(g)$
$(a)$ $TiCl_4(l) + Mg(s) \to Ti(s) + MgCl_2(s)$
$(b)$ $CaO(s) + SiO_2(s) \to CaSiO_3(s)$
$(c)$ $H_2O_2(l) \xrightarrow{UV} H_2O(l) + O_2(g)$
Medium
View SolutionWrite true or false for the following statement: On heating the crystals of ferrous sulphate,the colour changes from green to grey.
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo