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Chemical Reactions and Equations Quiz

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Questions and Answers

Why is magnesium ribbon rubbed before burning?

It has a coating of basic magnesium sulphide

It has a coating of basic magnesium carbonate

It has a coating of basic magnesium oxide (correct)

It has a coating of basic magnesium chloride

Which of the following statements about the given reaction 3Fe (s) + 4H2O (g) → Fe3O4 (s) + 4 H2 (g) are correct?

(i), (ii) and (iii)

(i), (ii) and (iv)

(ii) and (iv) (correct)

(i) and (iv)

Which of the following are exothermic processes?

Reaction of water with quick lime (correct)

Evaporation of water

Sublimation of camphor (crystals)

Dilution of an acid

What is oxidation?

<p>Addition of oxygen</p> Signup and view all the answers

What is reduction?

<p>Addition of hydrogen</p> Signup and view all the answers

Study Notes

Why is magnesium ribbon rubbed before burning? Which of the following statements about the given reaction 3Fe (s) + 4H2O (g) → Fe3O4 (s) + 4 H2 (g) are correct? Which of the following are exothermic processes? What is oxidation? What is reduction?

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Description

Test your knowledge of chemical reactions and equations with this question bank from K.P.C. English High School & Jr. College, Kharghar. Challenge yourself with multiple-choice questions covering topics like the properties of magnesium and reactions.