Which of the given chemical equations is balanced?
chemical reaction and equation

Quiz
•
Chemistry
•
10th Grade
•
Medium
Raj Krishanan
Used 17+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A) H2O2 → H2O + O2
B) NaNO3 → NaNO2 + O2
C) CaCO3 → CaO + CO2
D) Al2CO3 → Al2O3 + CO2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following conditions is necessary for a chemical reaction?
A) It must be accompanied with change in temperature and pressure
B) At least one of the reactants must be in a fixed quantity
C) It must follow the law of conservation of mass
D) All of the above
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which reaction do two compounds exchange their ions to form two new compounds?
A) Displacement reaction
B) Double displacement reaction
C) Synthesis reaction
D) Decomposition reaction
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Identify the substance which reduces a compound.
A) A hydrating agent
B) A dehydrating agent
C) An oxidizing agent
D) A reducing agent
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which reaction does the addition and the removal of oxygen takes place simultaneously?
A) Oxidation reaction
B) Reduction reaction
C) Redox reaction
D) Precipitation reaction
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Identify the type of reaction: H2 + Cl2 → 2HCl
A) Decomposition reaction
B) Combination reaction
C) Double displacement reaction
D) Displacement reaction
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements is correct about the given reaction?
CO is being oxidized
ZnO is being oxidized
CO is being reduced
ZnO is being reduced
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