Chemical Reaction Quiz
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Question 1
a. AgN+ NaCl → AgCl + NaN
b. 2Na +2 O→ 2 NaOH +
c. CuS + Zn → Cu + ZnS
d. 2HgO→2Hg+O2
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Question 2
List I
(Chemical Reactions)
a. Exothermic reactions
b. Endothermic reactions
c. Photochemical reactions
d. Electrochemical reactions
List II
(Example)
1). Electrolysis
2). Photosynthesis
3). Setting of cement
4). Melting of ice
Codes:
Question 3
a. A chemical reaction in which a compound breaks down into two or more simpler substances is called a decomposition reaction.
b. Decomposition reaction can be considered as the reverse process of combination reaction.
c. It is also known as synthesis reaction.
d. Production of lime is an example of decomposition reaction.
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Question 4
a. Single displacement reactions – AB + CD → AD + CB
b. Combination reactions – X + Y → XY
c. Decomposition reactions – XY → X + Y
d. Double displacement reactions – A + BC → AC + B
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Question 5
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