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MDCAT Chemistry Chapter 10 Chemical bonding Online Test MCQs With Answers

Question # 1

Which of the following belongs to alkaline earth metals

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Question # 2

One of the following metals is the most reactive and form super oxide. Indicate that

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Question # 3

Beryllium differs from other elements of group Il-A due to

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high charge density

comparatively high nuclear charge

small radius

all above

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Question # 4

Elements of II-A group are called alkaline earth metals due to the reason that

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they occur in earth only

they form divalent cations only

they have ns2 electronic configuration

their oxides and hydroxides are alkaline in nature and metals are present in earth crust

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Question # 5

Corrundam is ore of which element?

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Question # 6

Which is the least reactive of all the alkali metals

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Question # 7

Li resembles with Mg, because

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the ratio of their charge to size is nearly the same

both have nearly same size

both are metallic in nature

both are found together in nature

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Question # 8

What is the formula of dolomite?

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CaMg3 (SiO3)4

MgCO3

MgCO3.CaCO3,

MgSO4

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Question # 9

The alkaline earth metals are called so because they

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form alkaline solution and are present in earth crust as minerals

form alkaline solution and are found in nature states

are present in earth crust

are present in earth crust as their minerals

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Question # 10

Elements of group ll-A are called

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f-block elements

s-block elements

p-block elements

d-block elements

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Question # 11

Which one of following property is not true about alkali metals?

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Strongest bases due to their hydrides

Low ionization energy

Oxidation number more than +1

Form acidic oxides

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