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Chemical Reaction Quiz

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Question 1

Which of the following is/are examples of displacement reaction(s)?

a. AgN+ NaCl AgCl + NaN

b. 2Na +2 O 2 NaOH +

c. CuS + Zn Cu + ZnS

d. 2HgO2Hg+O2

Choose the correct answer using the codes given below:

Question 2

Match List I with List II and select the correct answer by using the codes given below:

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

Which of the following statement(s) is/are correct?

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.

Choose the correct answer using the codes given below:

Question 4

Find the right pair(s) from the following.

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

Select the correct answer using the codes given below:

Question 5

Who wrote the first chemical equation?
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Oct 11Kerala State Exams