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Match the Following: - Chemistry

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Question

Match the following:

a. Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g)

 i. Photochemical decomposition

b. \[\ce{2AgCI(s) ->[Sunlight] 2Ag(s) + CI2(g)}\]

 ii. Thermal decomposition

c. \[\ce{2KCI ->[Electricity] 2K + CI2}\]

iii. Displacement reaction

d.  \[\ce{2HgO(s) ->[\Delta] 2Hg(s) + O(g)}\]

iv. Electrolytic decomposition

Match the Columns

Solution

a. Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g)

 i. Displacement reaction

b. \[\ce{2AgCI(s) ->[Sunlight] 2Ag(s) + CI2(g)}\]

 ii. Photochemical decomposition

c. \[\ce{2KCI ->[Electricity] 2K + CI2}\]

iii. Electrolytic decomposition

d.  \[\ce{2HgO(s) ->[\Delta] 2Hg(s) + O(g)}\]

iv. Thermal decomposition

 

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Chapter 2: Chemical Changes and Reactions - Exercise 2 (B) [Page 29]

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Selina Concise Chemistry [English] Class 9 ICSE
Chapter 2 Chemical Changes and Reactions
Exercise 2 (B) | Q 11 | Page 29
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