What do you observe when a magnesium ribbon is burnt in air?
Chemical Reactions and Equations Quiz

Quiz
•
Science
•
10th Grade
•
Medium
Sumeet Singh
Used 1+ times
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31 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Do you observe anything happening around the zinc granules when react with HCl ?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What do you observe when potassium iodide solution is added to lead nitrate solution?
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?
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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