Chemistry Basic Unit 5 Test
Quiz
•
Chemistry
•
11th - 12th Grade
•
Practice Problem
•
Medium
Physics seconds
Used 3+ times
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40 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2CO(g)+O2(g) →2CO2(g)+ X kJ.
In this equation X kJ is
Heat of formation of CO2
Heat of combustion
Heat of reaction
Heat of sublimation
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The heats of neutralization of four acids A, B, C and D are –57.26, –39.32, –46.86, and –51.88 kJ/mol respectively, when they are neutralized by a common base, the acidic character follows the order
A > B > C > D
A > D > C > B
D > C > B > A
D > B > C > A
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Reaction of water with quick lime result in the rise in the temperature of the system. Using the concentration change, indicate the nature of the reaction?
Third order reaction
Endothermic reaction
Non spontaneous reaction
Exothermic reaction
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Correct decreasing order of energy is
1 erg > 1 Joule > 1 Cal
1 Cal > 1 Joule > 1 erg
1 erg > 1 Cal > 1 Joule
1 Joule > 1 Cal > 1 erg
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Lesser the energy of a system
Greater is its stability
Lesser is its stability
Greater is its un-stability
None of these
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
For the melting of ice ΔH is
Greater is its stability
Positive
Zero
Cannot be predicted
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
ΔH for the reaction, H(g) + H(g) → H2(g) will be
Zero
Positive
Negative
≥ 0
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