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Question-1
An exothermic enthalpy always have a value:
(A)
Negative
(B)
Positive
(C)
Zero
(D)
Either negative or positive
Question-2
The standard enthalpy change of combustion of hydrogen is:
(A)
- 300 KJ mol
-1
(B)
-286 KJ mol
-1
(C)
348 KJ mol
-1
(D)
298 KJ mol
-1
Question-3
Quick lime is:
(A)
Calcium sulphate
(B)
Calcium hydroxide
(C)
Calcium oxide
(D)
Calcium carbonate
Question-4
The spectator ions among the following.
(A)
H+
(B)
OH-
(C)
Na+
(D)
COOH
-
Question-5
The apparatus used for measuring energy during combustion.
(A)
Flame calorimeter
(B)
Photometric apparatus
(C)
Spectrometer
(D)
Galvanometer
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
First law of thermodynamics deals with transfer of:
(A)
Man
(B)
Heat
(C)
Energy
(D)
Particles
Question-8
The energy released when one mole of methane is burnt in oxygen.
(A)
-588 K J mol
-1
(B)
-833 KJ mole
-1
(C)
-890.3 KJ mole
-1
(D)
-572 K J mole
-1
Question-9
The total energy content of the reacting materials is:
(A)
Entropy
(B)
Enthalpy
(C)
Surface energy
(D)
Heat of formation
Question-10
Bond breaking is a:
(A)
Exothermic reaction
(B)
Endothermic reaction
(C)
Neutralisation reaction
(D)
Displacement reaction
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Cambridge Advanced Grade 11
IGCSE
Practice in Related Chapters
Atomic Structure (As)
States of Matter (As)
Hydrocarbons: Fuels
Group VII Elements and their Compounds
Hydrocarbons: Alkenes
Halogenoalkanes
Basic Concepts in Organic Chemistry
Alcohols
Enthalpy Changes
Reaction Rates
Equilibria
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