Chemistry | Study Mode

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Question 31
A
Carbon (IV) oxide.
B
Sulphur(VI)oxide .
C
Sulphur (IV) oxide.
D
Carbon (II) oxide
Explanation

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Correct option: D
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Question 32
A
prevent condensed water from breaking the reaction flask
B
enable the proper mixing of the reactants in the flask.
C
enhance the speed of the reaction
D
prevent formation of precipitate.
Explanation

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Correct option: A
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Question 33
A

N2O

B

NO2

C

NH3

D

NO

Explanation

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Correct option: A
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Question 34
A
hydroxide ion
B
sulphur (VI) oxide.
C
hydrogen sulphide.
D
trioxosulphate(IV) ion
Explanation

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Correct option: D
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Question 35
A
barium.
B
potassium.
C
manganese.
D
aluminium.
Explanation

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Correct option: B
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Question 36
A
is at the bottom of the activity series.
B
is very reactive.
C
is a transition element.
D
has completely filled 3d-orbitals.
Explanation

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Correct option: A
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Question 37
A
f-orbital.
B
s-orbital.
C
p-orbital.
D
d-orbital.
Explanation

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Correct option: D
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Question 38
A
has a low density.
B
does not react with the acid
C
does not corrode.
D
has a silvery-white appearance.
Explanation

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Correct option: B
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Question 39
A
dihydric alkanol.
B
primary alkanol.
C
secondary alkanol.
D
tertiary alkanol.
Explanation

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Correct option: D
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Question 40
A
propanol and ethanamide.
B
propanol and propanamide.
C
ethanol and ropanamide.
D
ethanol and ethanamide.
Explanation

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Correct option: D

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