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Chemistry General Science Test Hard Mode MCQs With Answers
Question # 1
The spectrum of helium is expected to be similar to that of
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H
Li
+
Na
He
+
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Question # 2
All the naturally occurring processes proceed spontaneously in a direction which lead to
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Decrease of entropy
Increase of enthalpy
Increase of free energy
Decrease of free energy
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Question # 3
Which of the following metal exhibits more than one oxidation?
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Na
Mg
Fe
AI
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Question # 4
In a crystal a ≠ b ≠ c, a = γ = 90° and β ≠ 90°, it is
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Monoclinic
Rhombic
Trigonal
Tetragonal
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Question # 5
The bond angle H - O - H in ice is closest to
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120° , 28°
60°
90°
109°
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Question # 6
The IUPAC name of the compound having the formula (CH3) 3 C - CH = CH2 is
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1, 1 -Dimethyl-3-butene
1,1,1-Trimethyl-3-propene
3,3,-Dimethyl-1-butene
3,3,3-Trimethyl-1-propene
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Question # 7
The valence orbital configuration of an element with atomic number 23 is
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3d
5
3d
3
,
4s
2
3d
3
,
4s
1
,
4p
1
3d
2
,
4s
2
,
4p
1
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Question # 8
The last orbit of argon would have electrons
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8
18
2
6
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Question # 9
Which of the following represents elements in order of increasing atomic size?
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I,Br,CI
Na,Mg,C
C,N,O
Li,Na,K
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Question # 10
The rate at which a substance reacts depends on its
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Atomic weight
Equivalent weight
Molecular weight
Active mass
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Question # 11
2 g oxygen contains number of atoms equal to that in
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0.5 g of hydrogen
4 g of sulphur
7 g of nitrogen
2.3 g of sodium
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Question # 12
Number of elements present in the fifth period of periodic table is
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8
10
18
32
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Question # 13
Which of the following fluorides of xenon is impossible?
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XeF
2
XeF
3
XeF
4
XeF
6
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Question # 14
Which of the following has least mass?
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2 gram atom of nitrogen
3 x 10
23
atoms of C
1 mole of S
7.0 g of Ag.
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Question # 15
1-Chloropropane has two isomers. It is an example of
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Chain isomerism
Position isomerism
Function group isomerism
Meramerism
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Question # 16
For the carbylamine reaction we need hot alc. KOH and
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Any amin and chloroform
Chloroform and Ag powder
A primary amine and chloroform
A mono alkyl amine and trichlorom-ethane
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Question # 17
The last orbit of argon would have electrons
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8
18
2
6
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Question # 18
Vitamin A is present in
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Liver
Milk
Green vegetables
All
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Question # 19
Hydrogen chloride molecule contains
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Covalent bond
Double bond
Co-ordinate bond
Electrovalent bond
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Question # 20
Hydrolytic conversion of sucrose into glucose and fructose is known as
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Induction
Inversion
Insertion
Inhibition
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Question # 21
When excess of SnCl
2
is added to a solution of HgCl
2, a white precipitate turning to grey is obtained. They grey colour is due to the formation of
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Hg
2
Cl
2
SnCl
4
Sn
Hg
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Question # 22
Which of the following substances is used as an antiknock compound?
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Tetraethyl lead
Lead tetrachloride
Lead acetate
Ethyl acetate
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