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Question-1
The solvent step in a reaction mechanism is called:
(A)
Fast step
(B)
Slow step
(C)
First step
(D)
Rate determining step
Question-2
When temperature is increased by 10 Kelvin, the rate of reactions is:
(A)
Halved
(B)
Remains same
(C)
Doubled
(D)
Becomes 5 times
Question-3
The catalyst used in the hydorgenation of vegetable oil.
(A)
Nickel
(B)
Platinum
(C)
Copper
(D)
Iron
Question-4
Iron reacts with copper ions in the solution, displacing them and the colour of the solution changes to:
(A)
Red
(B)
Green
(C)
Blue
(D)
Yellow
Question-5
The traditional name of ethane is:
(A)
Acetal
(B)
Acetaldehyde
(C)
Acetone
(D)
Acetylene
Question-6
The minimum energy required for reaction to occur.
(A)
Threshold energy
(B)
Kinetic energy
(C)
Activation energy
(D)
Potential energy
Question-7
In Haber process, the product formed is:
(A)
Ammonia
(B)
Sulphuric acid
(C)
Nitrogen dioxide
(D)
Proteins
Question-8
Oxygen atom combine with oxygen molecules to form:
(A)
Oxygen free radical
(B)
Oxides
(C)
Hydroxides
(D)
Ozone
Question-9
If the catalyst and the reactants are present in the same phase, then reaction is:
(A)
Displacement
(B)
Homogeneous catalysis
(C)
Heterogeneous catalysis
(D)
Free radical addition
Question-10
The device used to measure colour concentration.
(A)
Spectrophotometer
(B)
Colorimeter
(C)
Calorimeter
(D)
Voltameter
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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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