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NAT I Engineering Chemistry MCQs With Answers
Question # 1
The weight of 11.2 liters of CO
2
at S.T.P. would be
Choose an answer
88 g
44 g
32 g
22 g
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Question # 2
The heats evolved in combustion of rhombic and monoclinic sulphur are - 70960 and -71030 cal mol
-1
respectively what will be heat of conversion of rhombic sulphur ti monoclinic?
Choose an answer
70960 calories
71030 calories
-70 calories
+70 calories
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Question # 3
Natural fertilizer provides potassium in the form of K
2
O (potash)
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1.5 kg
3 kg
4.5 kg
6.5 kg
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Question # 4
Inter molecular forces in solid hydrogen are
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Covalent forces
Van der Waal forces or London dispersion force
Hydrogen bonds
All of these
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Question # 5
Which has maximum protein content?
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Ground nut
Cow milk
Egg
Wheat
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Question # 6
In Friedal-Craft's alkylation besides AICI3 the other reactants are
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C6H6 + NH3
C6H6 + CH4
C6H6 + CH3CI
C6H6 + CH3COCI
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Question # 7
The symbol of the element whose atoms have the outer most electronic configuration 2s
2
2p
3
is
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N
Li
P
Na
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Question # 8
Which of the following is a colligative property?
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Melting point
Osmotic pressure
Freezing point
Sublimation temperature
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Question # 9
The number of atoms in 0.0004 g of magnesium is close to
Choose an answer
24
2 x 10
20
10
20
6.02 x 10
23
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Question # 10
Which inorganic precipitate acts as semipermeable membrane?
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Calcium sulphate
Barium oxalate
Nickel phosphate
Copper ferrocyanide
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Question # 11
The reference calomel electrode is made from which of the following?
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ZnCI
2
CuSO
4
Hg
2
CI
2
HgCI
2
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