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Home
Hydrogen Test - 4
Hydrogen Test - 4
Result
Hydrogen Test - 4
/
Score
-
Rank
Time Taken:
-
Question
1/10
4 / -1
What is formed when calcium carbide react with heavy water?
Correct
Wrong
Skipped
A
C
2
D
2
Correct
Wrong
Skipped
B
CaD
2
Correct
Wrong
Skipped
C
CaD
2
O
Correct
Wrong
Skipped
D
CD
2
Question
2/10
4 / -1
The oxidation number of oxygen in hydrogen peroxide is
Correct
Wrong
Skipped
A
+1
Correct
Wrong
Skipped
B
-1
Correct
Wrong
Skipped
C
+2
Correct
Wrong
Skipped
D
-2
Question
3/10
4 / -1
Correct
Wrong
Skipped
A
sodium arsenite
Correct
Wrong
Skipped
B
calcium oxide
Correct
Wrong
Skipped
C
sodium phosphite
Correct
Wrong
Skipped
D
aluminium oxide
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Solutions
Question
4/10
4 / -1
Hydrogen is prepared on large scale for industrial use
Correct
Wrong
Skipped
A
by Zn + H
2
SO
4
Correct
Wrong
Skipped
B
by Al + NaOH
Correct
Wrong
Skipped
C
by Na + C
2
H
5
OH
Correct
Wrong
Skipped
D
from water gas
Question
5/10
4 / -1
The
ortho
and
para
hydrogen differ in respect of which of the following?
Correct
Wrong
Skipped
A
In the molecular weight
Correct
Wrong
Skipped
B
In the nature of spin of protons
Correct
Wrong
Skipped
C
In the nature of spin of electrons
Correct
Wrong
Skipped
D
In the number of protons
Question
6/10
4 / -1
Adsorbed hydrogen by palladium is known as
Correct
Wrong
Skipped
A
nascent
Correct
Wrong
Skipped
B
atomic
Correct
Wrong
Skipped
C
heavy
Correct
Wrong
Skipped
D
occluded
Question
7/10
4 / -1
Hydrogen is not obtained when Zn reacts with
Correct
Wrong
Skipped
A
cold water
Correct
Wrong
Skipped
B
hot NaOH solution
Correct
Wrong
Skipped
C
dil. H
2
SO
4
Correct
Wrong
Skipped
D
dil. HCl
Question
8/10
4 / -1
Which of the following is responsible for the hardness of water?
Correct
Wrong
Skipped
A
CaHCO
3
Correct
Wrong
Skipped
B
CaCl
2
Correct
Wrong
Skipped
C
Both (1) and (2)
Correct
Wrong
Skipped
D
None of these
Question
9/10
4 / -1
When H
2
O
2
is shaken with an acidified solution of K
2
Cr
2
O
7
in the presence of ether, the ethereal layer turns blue due to the formation of
Correct
Wrong
Skipped
A
Cr
2
O
3
Correct
Wrong
Skipped
B
Correct
Wrong
Skipped
C
Cr
2
(SO)
3
Correct
Wrong
Skipped
D
CrO
5
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Solutions
Question
10/10
4 / -1
Which of the following is not correct for D
2
O ?
Correct
Wrong
Skipped
A
Boiling point is higher than H
2
O
Correct
Wrong
Skipped
B
D
2
O reacts slowly than H
2
O
Correct
Wrong
Skipped
C
Viscosity is higher than H
2
O at 25°C
Correct
Wrong
Skipped
D
Solubility of NaCl in it is more than H
2
O
Re-attempt
-
Correct (
-
)
Wrong (
-
)
Skipped (
-
)
1
2
3
4
5
6
7
8
9
10
Re-attempt
-
Correct (
-
)
Wrong (
-
)
Skipped (
-
)
1
2
3
4
5
6
7
8
9
10
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