Metals And Non Metals Test

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Metals And Non Metals Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

The flux used in the blast furnace to remove the unwanted impurities is

A
basic

B
acidic

C
neutral

D
amphoteric

Solution

The flux which is used in the blast furnace to remove the unwanted impurities is basic in nature.
Question 2
1 / -0

Mercury is used as a solvent in refining

A
aluminium

B
silver

C
potassium

D
calcium

Solution

Mercury is used as a solvent in refining silver.
Question 3
1 / -0

Matrix is defined as

A
unwanted foreign material present in the ore

B
flux added to remove the unwanted impurities from ore

C
slag formed as a result of the reaction of flux with gangue

D
material used in the reduction of metal oxide to metal

Solution

Matrix is defined as an unwanted foreign material present in an ore.
Question 4
1 / -0

Brass is an alloy of

A
nickel and copper

B
iron and nickel

C
copper and silver

D
zinc and copper

Solution

Brass is an alloy of zinc and copper.
Question 5
1 / -0

Solder metal is an alloy of

A
tin and zinc

B
zinc and lead

C
zinc and copper

D
tin and lead

Solution

Solder metal is an alloy of tin and lead.
Question 6
1 / -0

Stainless steel is an alloy of iron and

A
chromium

B
nickel

C
chromium and nickel

D
chromium and silver

Solution

Stainless steel is an alloy of iron, chromium and nickel.
Question 7
1 / -0

Cadmium is used in nuclear reactors because it

A
slows down the speed of neutrons

B
speeds up the neutrons

C
absorbs the neutrons

D
releases neutrons

Solution

Control rods are used in nuclear reactors to control the fission rate of uranium and plutonium. They are composed of chemical elements such as boron, silver, indium and cadmium and are capable of absorbing many neutrons without themselves fissioning.
Question 8
1 / -0

Which of the following characteristics is common in both sodium (Na) and potassium (K), but different in magnesium (Mg)?

A
Number of electron shells

B
Number of valence electrons

C
Number of isotopes

D
Number of neutrons

Solution

The number of valence electrons is the same in both sodium and potassium, but different in magnesium. This is because sodium and potassium are elements of the same group.
Question 9
1 / -0

Which metal is generally mixed with gold to make ornaments?

A
Aluminium

B
Copper

C
Zinc

D
Platinum

Solution

Copper metal is mixed with gold to make ornaments.
Question 10
1 / -0

Gunpowder contains

A
a mixture of charcoal, sulphur and potassium nitrate

B
a mixture of sulphur, phosphorus and potassium chloride

C
a mixture of charcoal and phosphorus

D
a mixture of potassium nitrate and potassium sulphate

Solution

Gunpowder contains a mixture of charcoal, sulphur and potassium nitrate.

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Metals And Non Metals Test - 2

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Metals And Non Metals Test - 2

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Question 1

basic

acidic

neutral

amphoteric

Solution

Question 2

aluminium

silver

potassium

calcium

Solution

Question 3

unwanted foreign material present in the ore

flux added to remove the unwanted impurities from ore

slag formed as a result of the reaction of flux with gangue

material used in the reduction of metal oxide to metal

Solution

Question 4

nickel and copper

iron and nickel

copper and silver

zinc and copper

Solution

Question 5

tin and zinc

zinc and lead

zinc and copper

tin and lead

Solution

Question 6

chromium

nickel

chromium and nickel

chromium and silver

Solution

Question 7

slows down the speed of neutrons

speeds up the neutrons

absorbs the neutrons

releases neutrons

Solution

Question 8

Number of electron shells

Number of valence electrons

Number of isotopes

Number of neutrons

Solution

Question 9

Aluminium

Copper

Zinc

Platinum

Solution

Question 10

a mixture of charcoal, sulphur and potassium nitrate

a mixture of sulphur, phosphorus and potassium chloride

a mixture of charcoal and phosphorus

a mixture of potassium nitrate and potassium sulphate

Solution

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