WorksheetsEndothermic and exothermic reaction
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Which type of reaction absorbs heat from the surroundings?
a)
Endothermic reaction
b)
Synthetic reaction
c)
Exothermic reaction
d)
Oxidation reaction
2.
Which type of reaction releases heat into the surroundings?
a)
Exothermic reaction
b)
Endothermic reaction
c)
Decomposition reaction
d)
Combustion reaction
3.
Which type of reaction absorbs energy from the surroundings?
a)
Endothermic reaction
b)
Catalytic reaction
c)
Reversible reaction
d)
Spontaneous reaction
4.
During which type of reaction does the temperature of the surroundings usually increase?
a)
Exothermic reaction
b)
Polymerization reaction
c)
Endothermic reaction
d)
Neutralization reaction
5.
Which type of reaction requires an input of heat from the surroundings?
a)
Endothermic reaction
b)
Activation reaction
c)
Irreversible reaction
d)
Displacement reaction
6.
In which type of reaction does the system gain energy from the surroundings?
a)
Endothermic reaction
b)
Exothermic reaction
c)
Precipitation reaction
d)
Acid-base reaction
7.
Which type of reaction typically feels cold to the touch as a result of heat being absorbed?
a)
Endothermic reaction
b)
Hydrolysis reaction
c)
Redox reaction
d)
Exothermic reaction
8.
Which type of reaction releases energy into the surroundings?
a)
Exothermic reaction
b)
Polymerization reaction
c)
Neutralization reaction
d)
Endothermic reaction
9.
During a(n) _____ reaction, energy is absorbed from the surroundings, resulting in a temperature decrease.
a)
Endothermic
b)
Exothermic
c)
Oxidative
d)
Catalytic
10.
Which type of reaction releases heat as a product?
a)
Exothermic reaction
b)
Polymerization reaction
c)
Endothermic reaction
d)
Hydrogenation reaction
11.
Which of the following best describes an endothermic reaction?
a)
Absorbs heat from the surroundings
b)
Releases heat to the surroundings
c)
Has no effect on the surroundings
d)
Does not require heat to occur
12.
What occurs in an exothermic reaction?
a)
Heat is released to the surroundings
b)
Heat is absorbed from the surroundings
c)
No change in heat
d)
Heat is trapped within the reaction
13.
What happens to the temperature of the surroundings in an exothermic reaction?
a)
Increases
b)
Stays the same
c)
Decreases
d)
Fluctuates
14.
Which of the following is true for an exothermic reaction?
a)
Heat is a product of the reaction
b)
Heat is converted to light
c)
Heat is a reactant in the reaction
d)
Heat is not involved in the reaction
15.
What type of reaction absorbs heat from the surroundings?
a)
Endothermic reaction
b)
Neutral reaction
c)
Combustion reaction
d)
Exothermic reaction
16.
In which type of reaction does the temperature of the surroundings decrease?
a)
Endothermic reaction
b)
Neutral reaction
c)
Combustion reaction
d)
Exothermic reaction
17.
What happens to the energy level of the reactants in an exothermic reaction?
a)
Energy level decreases
b)
Energy level fluctuates
c)
Energy level increases
d)
Energy level remains the same
18.
Which of the following statements is true for endothermic reactions?
a)
They require an input of energy to occur
b)
They have no effect on the surroundings
c)
They release energy to the surroundings
d)
They occur instantaneously
19.
What is the effect of an exothermic reaction on the surroundings?
a)
The surroundings heat up
b)
The surroundings become neutral
c)
The surroundings cool down
d)
No change in the surroundings
20.
Which of the following is characteristic of an exothermic reaction?
a)
Release of energy in the form of heat
b)
Absorption of energy from the surroundings
c)
Conversion of energy to light
d)
No change in energy levels
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