Chemical Reactions and Equations Quiz

Chemical Reactions and Equations Quiz

10th Grade

31 Qs

quiz-placeholder

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Chemical Reactions and Equations Quiz

Chemical Reactions and Equations Quiz

Assessment

Quiz

Science

10th Grade

Medium

Created by

Sumeet Singh

Used 1+ times

FREE Resource

31 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What do you observe when a magnesium ribbon is burnt in air?

A bright white flame and white powder (magnesium oxide) are observed.
A bright yellow flame and black smoke are produced.
A blue flame and a gas are released.
A dull red flame and no residue are observed.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Do you observe anything happening around the zinc granules when react with HCl ?

Yes, the zinc granules are melting.
Yes, the zinc granules are changing color.
No, nothing is happening around the zinc granules.
Yes, bubbles or fizzing may be observed around the zinc granules.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What do you observe when potassium iodide solution is added to lead nitrate solution?

A clear solution remains unchanged.
A red precipitate of lead(II) iodide forms.
A gas is released during the reaction.
A yellow precipitate of lead(II) iodide forms.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Is the chemical equation Fe + H2O → Fe3O4 + H2 balanced?

Yes

No

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why should a magnesium ribbon be cleaned before burning in air?

A magnesium ribbon should be cleaned before burning in air to remove impurities that can hinder combustion.
To enhance the color of the flame during combustion.
To make the ribbon more flexible for handling.
To increase the magnesium's weight before burning.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Write the balanced equations for the following chemical reactions: (i) Hydrogen + Chlorine → Hydrogen chloride (ii) Barium chloride + Aluminium sulfate → Barium sulfate + Aluminium chloride (iii) Sodium + Water → Sodium hydroxide + Hydrogen

H2 + Cl2 → HCl; 3BaCl2 + Al2(SO4)3 → 2BaSO4 + 3AlCl3; 2Na + 2H2O → NaOH + H2

H2 + Cl2 → 2HCl; 3BaCl2 + Al2(SO4)3 → 3BaSO4 + 2AlCl3; 2Na + 2H2O → 2NaOH + H2

H2 + Cl2 → 2HCl; 3BaCl2 + Al(SO4)3 → 3BaSO4 + AlCl3; 2Na + H2O → NaOH + H2

H2 + Cl2 → HCl; BaCl2 + Al2(SO4)3 → BaSO4 + AlCl3; Na + H2O → NaOH + H2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Write a balanced chemical equation with state symbols for the following reactions: (i) Solutions of barium chloride and sodium sulfate in water react to give insoluble barium sulfate and a solution of sodium chloride. (ii) Sodium hydroxide solution (in water) reacts with hydrochloric acid solution (in water) to produce sodium chloride solution and water.

BaCl2(aq) + Na2SO4(aq) → BaSO4(s) + 2NaCl(aq)

NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l)

BaCl2(s) + Na2SO4(aq) → BaSO4(s) + 2NaCl(aq)

(i) BaCl2(aq) + Na2SO4(aq) → BaSO4(s) + 2NaCl(aq); (ii) NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l)

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