Chemistry (UI) | Study Mode

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Question 71
A
Fluorine
B
chlorine
C
Bromine
D
iodine
E
Astatine.
Explanation

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Correct option: B
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Question 72
A
monoclinic sulphur
B
rhombic sulphur
C
amorphous sulphur
D
plastic sulphur
E
ordinary sulphur
Explanation

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Correct option: B
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Question 73
A
CaNO3 + H2O
B
Ca(NO3)2 + 2 H2O
C
CaO + 2 NO2 + 3H2O
D
Ca + 2 NO3 + 2 H2O
Explanation

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Correct option: B
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Question 74
A
dehydrating agent
B
catalytic agent
C
oxidizing agent
D
bonding agent
E
preservative agent
Explanation

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Correct option: B
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Question 75
A
Ca(HCO3)2
B
CaCO3
C
Ca(NO3)2
D
CaCl2
E
CaSO4
Explanation

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Correct option: B
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Question 76
A
Oxygen
B
Carbon (II) oxide
C
Nitrogen
D
Sulphur (IV) oxide
Explanation

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Correct option: D
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Question 77
A
diamond
B
graphite
C
buck minsterfullerene
D
all of the above
E
none of the above
Explanation

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Correct option: E
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Question 78
A
MgO
B
NaO
C
CaO
D
ZnO
E
BeO
Explanation

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Correct option: D
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Question 79
A
most potassium compounds are less soluble in water
B
most potassium compounds are quite soluble in water
C
presence of other alkali metal ions has great influence on it
D
magnesium ion is an alkaline earth metal ion.
E
None of the above.
Explanation

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Correct option: B
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Question 80
A
Iodine solution
B
bromine water
C
Fehlings solution
D
de-ionized water
Explanation

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Correct option: C

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