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Chemistry UTME / JAMB 2016 Acids, Bases, and Salts
In the laboratory preparation of chlorine from concentrated hydrochloric acid in the presence of potassuim tetraoxomanganate(VII) the produced is dried by passing it through
A
Concentrated tetraoxosulphate (VI) acid
B
Anhydrous calcium chloride
C
Calcium oxide
D
Sodium hydroxide
medium Difficulty
Chemistry UTME / JAMB 2016 Matter & Separation Techniques
The monomer of nylon is
A
Hydroxybenzene
B
Hexanedioic acid
C
Benzene -1,-4-dicarboxylic acid
D
Ethane-1,2-diol
medium Difficulty
Chemistry UTME / JAMB 2016 Matter & Separation Techniques
The principle of column chromatography is based on th ability of the constituents to
A
React with the solvent in the column
B
React with each other in the solvent in the column
C
Dissolve in each other in the column
D
Move at different speeds in the column
medium Difficulty
Chemistry UTME / JAMB 2016 Matter & Separation Techniques
Ammonium chloride can be separated from its mixture with common salt by
A
Distillation
B
Evaporation
C
Decantation
D
Sublimation
medium Difficulty
Chemistry UTME / JAMB 2016 Matter & Separation Techniques
The ability of carbon to form long chains is referred to as
A
Alkylation
B
Acylation
C
Carbonation
D
Catenation
medium Difficulty
Chemistry UTME / JAMB 2016 Matter & Separation Techniques
The industrial preparation of hydrogen gas from water gas is referred to as
A
Bosch process
B
Contact process
C
Haber process
D
Bayer Process
medium Difficulty
Chemistry UTME / JAMB 2016 Stoichiometry & Mole Concept
The relative atomic mass of a naturally occurring lithium consisting of 90%\(\frac{7}{3}\)Li and 10%\(\frac{6}{3}\)Li is
A
6.2
B
6.8
C
7.1
D
6.9
medium Difficulty
Chemistry UTME / JAMB 2016 Acids, Bases, and Salts
The colour of litmus in an alkaline medium is
A
Red
B
Yellow
C
Pink
D
Blue
medium Difficulty
Chemistry UTME / JAMB 2016 Matter & Separation Techniques
The compounds CH3CH2CHO and CH3COCH3 can be distinguished from each other using
A
Dilute ammonia
B
Benedict's solution
C
Tollen's reagent
D
Sodium hydroxide solution
medium Difficulty
Chemistry UTME / JAMB 2016 Organic Chemistry
Which of the following statements is true about 2-methylpropane and butane
A
They have different number of carbon atoms
B
They are members of same homologous series
C
They have the same boiling points
D
They have different chemical properties
medium Difficulty
Chemistry UTME / JAMB 2016 Matter & Separation Techniques
The process that requires the use of hardwater in its operation is
A
Tanning
B
Bottling
C
Laundry
D
Dyeing
medium Difficulty
Chemistry UTME / JAMB 2016 Stoichiometry & Mole Concept
What is the concentration of a solution containing 2g of NaOH in 100cm3 of solution? [Na=23, O=16, H=1]
A
0.05 moldm-3
B
0.30 moldm-3
C
0.50 moldm-3
D
0.40 moldm-3
medium Difficulty
Chemistry UTME / JAMB 2016 Atomic Structure and Periodic Table
The radioisotope used in industrial radiography for the rapid checking of faults in welds and casting is
A
Phosphorus-32
B
Cobalt-60
C
Carbon-14
D
Iodine-131
medium Difficulty
Chemistry UTME / JAMB 2016 Matter & Separation Techniques
The compound produced when sodium peroxide is heated with excess sodium is
A
Na2CO3
B
Na2O
C
NaNO2
D
NaOH
medium Difficulty
Chemistry UTME / JAMB 2016 Matter & Separation Techniques
The pollutant that contributes to the depletion of the ozone layer is
A
CFCs
B
NO2
C
SO2
D
CO
medium Difficulty
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