Chemistry Basic Unit 5 Test

Chemistry Basic Unit 5 Test

11th - 12th Grade

40 Qs

quiz-placeholder

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Chemistry Basic Unit 5 Test

Chemistry Basic Unit 5 Test

Assessment

Quiz

Chemistry

11th - 12th Grade

Practice Problem

Medium

Created by

Physics seconds

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40 questions

Show all answers

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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