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Question-1
First law of thermodynamics deals with transfer of:
(A)
Man
(B)
Heat
(C)
Energy
(D)
Particles
Question-2
The total energy content of the reacting materials is:
(A)
Entropy
(B)
Enthalpy
(C)
Surface energy
(D)
Heat of formation
Question-3
An exothermic enthalpy always have a value:
(A)
Negative
(B)
Positive
(C)
Zero
(D)
Either negative or positive
Question-4
The Haber process is used for the manufacture of:
(A)
Amines
(B)
Sulphur
(C)
Ammonia
(D)
Phosphates
Question-5
The compound plants produce by photosynthesis.
(A)
Proteins
(B)
Carbohydrates
(C)
Amines
(D)
Oxygen
Question-6
The energy required to decompose limestone.
(A)
+ 572 KJ mol
-1
(B)
- 890.3 KJ mol
-1
(C)
- 588 KJ mol
-1
(D)
-833 KJ mol
-1
Question-7
Quick lime is:
(A)
Calcium sulphate
(B)
Calcium hydroxide
(C)
Calcium oxide
(D)
Calcium carbonate
Question-8
The amount of energy needed to break a covalent bond is:
(A)
Bond enthalpy
(B)
Bond dissociation energy
(C)
Bond entropy
(D)
Standard enthalpy change
Question-9
Reactions in which heat energy is released is called:
(A)
Exothermic
(B)
Endothermic
(C)
Thermometric reaction
(D)
Emission
Question-10
An endothermic enthalpy change always have a value:
(A)
Negative
(B)
Zero
(C)
Either positive or negative
(D)
Positive
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Cambridge Advanced Grade 12
IGCSE
Practice in Related Chapters
Planet Earth
Atomic Structure
Group VII Elements and their Compounds
Halogenoalkanes
Basic Concepts in Organic Chemistry
Alcohols
Hydrocarbons: Alkenes
Hydrocarbons: Fuels
Reaction Rates
Enthalpy Changes
Equilibria
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