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MDCAT Chemistry Chapter 10 Chemical bonding Online Test MCQs With Answers
Question # 1
Which pair of following pair is metalloid?
Choose an answer
Antimony and bismuth
Phosphorous and arsenic
Nitrogen and phosphorous
Arsenic and antimony
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Question # 2
Beryllium differs from other elements of group Il-A due to
Choose an answer
high charge density
comparatively high nuclear charge
small radius
all above
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Question # 3
Which of the following configurations corresponds to alkaline earth metals?
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[Ar] 3d10, 4s2
[Ne] 3d2, 3p2
[Ar] 4s2
[Ar], 3d10, 4s1
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Question # 4
Which alkaline earth metal makes peroxide?
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Ba
Be
Mg
Ca
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Question # 5
Which of the following element has high m.p and b.p, it acts as a reducing agent, and can react with bases?
Choose an answer
Sr
Ca
Be
Mg
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Question # 6
Asbestos is commonly used in making
Choose an answer
wall board
black board
soft board
hard board
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Question # 7
Fluorine is largely used in
Choose an answer
rocket fuels
making Teflon
making freon
All
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Question # 8
Elements of II-A group are called alkaline earth metals due to the reason that
Choose an answer
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 # 9
Elements of group IV-A are
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neither strongly electropositive nor strongly electronegative
strongly electropositive
strongly electronegative
none of these
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Question # 10
Which of the following does not give flame test?
Choose an answer
Li
Ba
Mg
Sr
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Question # 11
Which of the following compounds is not known?
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SbCl
NCl3
Nl3
NCl5
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Question # 12
Which one of the following elements is most electropositive out of group I -A and II-A group?
Choose an answer
K
Mg
Na
Ca
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Question # 13
Which is the least reactive of all the alkali metals
Choose an answer
Li
Na
K
Cs
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Question # 14
Which is not mineral of AI?
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Diaspore
Corrundam
Bauxite
Galena
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Question # 15
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 # 16
Soda lime is often employed to remove both
Choose an answer
H2O and NO2
CO2, and NO2,
H2O and CO2
H2S and CO2
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Question # 17
What is the formula of clay?
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Asbestos
Talc
H2Al2(SiO4)2.H2O
Na2SiO3
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Question # 18
Which one of following property is not true about alkali metals?
Choose an answer
Strongest bases due to their hydrides
Low ionization energy
Oxidation number more than +1
Form acidic oxides
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Question # 19
The elements of group I-A react violently with water and make the solution
Choose an answer
neutral
amphoteric
acidic
alkaline
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Question # 20
The general electronic configuration of group IV-A elements is
Choose an answer
ns2, np6
ns2, np4
ns2, np3
ns2, np2
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