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Chemistry > Jamb 2016 > Flashcards

Jamb 2016 Flashcards

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1
Q

In an electrochemical cell, polarization is caused by

A

Hydrogen

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2
Q

The enzyme used in the hydrolysis of starch to dextrin and maltose is

A

Amylase

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3
Q

The monomer of nylon is

A

Hexanedioic/adipic acid

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4
Q

Ammonium chloride can be separated from its mixture with common salt by

A

Sublimation

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5
Q

The industrial preparation of hydrogen gas from water gas is referred to as

A

Bosch process

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6
Q

The compounds CH3CH2CHO and CH3COCH3 can be distinguished from each other using

A

Tolkien’s reagent

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7
Q 
The process that requires the use of hardwater in its operation is
A. Tanning
B. Bottling
C. Laundry
D. Dyeing
A

B

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8
Q

The compound produced when sodium peroxide is heated with excess sodium is

A

Na2O

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9
Q

Cast iron is used in making

A

Stoves and cookers

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10
Q

An example of a gaseous fuel is

A

Butane

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11
Q

The oxidation of primary alkanol will give

A

Aldehyde for incomplete and carboxylic acid for complete

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12
Q

The oxidation of secondary alcohol will give

A

Ketones

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13
Q

The oxidation of tertiary alcohol will give

A

Nothing

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14
Q

Is Al(OH)3 a base

A

Amphoteric

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15
Q

The metal whose ore can be concentrated by passing it through a magnetic separator is

A

Sn

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16
Q

The arrangement of particles in crystal lattices can be studied using

A

X-ray

17
Q

In the extraction of iron, the waste gas from the furnace is a mixture of

A

N2, CO and CO2

18
Q

In a neutralization reaction involving HCI and NaOH using litmus as indicator, the colour at the end point is

A

Purple

19
Q

An example of a solid emulsion is

A

Butter

20
Q

The gas that is used for the treatment of cancer is

A

Radon

21
Q

A chemical reaction in which the hydration energy is greater than the lattice energy is referred to as

A

Exothermic reaction

22
Q

n monosaccharide ⇌PQ
polysaccharide -n water.

In the process above, P and Q respectively represent

A

Condensation and hydrolysis

23
Q

CH4(g) + CI2(g) →
CH2CI(s) + HCIg

The major factor that influences the rate of the reaction above is

A

Light

Chemistry (7 decks)

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