
Exploring Chemical Reactions
Quiz
•
Others
•
10th Grade
•
Medium
Maths & Physics by Nandlal sir
Used 1+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the four main types of chemical reactions?
Redox
Synthesis, Decomposition, Single Replacement, Double Replacement
Photolysis
Neutralization
Combustion
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Define a synthesis reaction and provide an example.
The neutralization of an acid and a base: HCl + NaOH → NaCl + H₂O.
The combustion of methane: CH₄ + 2O₂ → CO₂ + 2H₂O.
The decomposition of water: 2H₂O → 2H₂ + O₂.
An example of a synthesis reaction is the formation of water: 2H₂ + O₂ → 2H₂O.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a decomposition reaction? Give an example.
The rusting of iron is a decomposition reaction.
The combination of hydrogen and oxygen to form water is a decomposition reaction.
The burning of wood is an example of a decomposition reaction.
An example of a decomposition reaction is the breakdown of water (H2O) into hydrogen (H2) and oxygen (O2) gas when subjected to electrolysis.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain what a single replacement reaction is.
A single replacement reaction is a process where two elements combine to form a compound.
A single replacement reaction is a type of reaction that only occurs in gases.
A single replacement reaction is a chemical reaction where one element replaces another in a compound.
A single replacement reaction involves two compounds exchanging elements.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What characterizes a double replacement reaction?
The breakdown of a compound into its individual elements.
The formation of a single compound from two reactants.
The transfer of electrons between two compounds.
The exchange of ions between two compounds resulting in two new compounds.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you balance the chemical equation H2 + O2 → H2O?
H2 + O2 → 2 H2O
2 H2 + 2 O2 → 2 H2O
2 H2 + O2 → 2 H2O
H2 + O2 → H2O
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the law of conservation of mass in relation to chemical equations?
The total mass of products is irrelevant to the reactants.
The total mass of reactants equals the total mass of products in a chemical reaction.
Mass can be created or destroyed in a chemical reaction.
The mass of reactants is always greater than the mass of products.
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