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NAT II Physical Science Chemistry MCQs With Answers
Question # 1
Which of the following elements is most electronegative?
Choose an answer
Oxygen
Chlorine
Nitrogen
Fuorine
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Question # 2
Which metal is protected by a layer of its own oxide?
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Al
Ag
Au
Fe
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Question # 3
Calcium cyanamide on treatment with steam under pressure gives NH
3
and
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Calcium carbonate
Calcium hydroxide
Calcium oxide
Calcium bicarbonate
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Question # 4
Salol is prepared from
Choose an answer
Salicyclic acid and phenol
Salicyclic acid and methyl alcohol.
Both
None
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Question # 5
The halide which is not hydrolysed is
Choose an answer
SiCl
4
SiF
4
CCl
4
PbCl
4
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Question # 6
The substance used as a smoke screen in warfare is
Choose an answer
SiCl
4
PH
3
PCl
5
Acetylene
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Question # 7
The most reactive compound for electrophilic nitration will be
Choose an answer
Benzyl chloride
Benzoic acid
Nitrobenzene
Chlorobenzene
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Question # 8
Saturated solution of NaCl on heating becomes
Choose an answer
Super saturated
Unsaturated
Remains saturated
None
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Question # 9
Hydrogen chloride molecule contains
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Covalent bond
Double bond
Co-ordinate bond
Electrovalent bond
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Question # 10
Bragg's law is given by equation
Choose an answer
n
λ
= 2
θ
sin
θ
n
λ
= 2 d sin
θ
2 n
λ
= d sin
θ
n
λ
= 1/2 d sin
θ
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Question # 11
Vital force theory was rejected by
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Berzelius
Kolbe
Wholer
Lavoiser
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Question # 12
Which is the most amphoteric?
Choose an answer
Na
2
O
MgO
Al
2
O
3
CaO
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Question # 13
Dehydration of glycerol give
Choose an answer
Propane
Propene
Acrolein
Benzene
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Question # 14
The ratio of close packed atoms to tetrahedral holes in cubic close packing is
Choose an answer
1 : 1
1 : 2
1 : 3
2 : 1
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Question # 15
The structure of XeF6
Choose an answer
Distorted octahedral
Pyramidal
Tetrahedral
None of the above
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Question # 16
Ethanol containing some methanol is called
Choose an answer
Absolute spirit
Rectified spirit
Power alcohol
Methylated spirit
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