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Home
Hydrogen Test - 17
Hydrogen Test - 17
Result
Hydrogen Test - 17
/
Score
-
Rank
Time Taken:
-
Question
1/10
4 / -1
Which one of the following processes will produce hard water?
Correct
Wrong
Skipped
A
Saturation of water with MgCO
3
Correct
Wrong
Skipped
B
Saturation of water with CaSO
4
Correct
Wrong
Skipped
C
Addition of Na
2
SO
4
to water
Correct
Wrong
Skipped
D
Saturation of water with CaCO
3
Question
2/10
4 / -1
Hydrazine reduces Fehling solution to
Correct
Wrong
Skipped
A
CuO
Correct
Wrong
Skipped
B
Cu
2
O
Correct
Wrong
Skipped
C
Cu + O
2
Correct
Wrong
Skipped
D
Cu (OH)
2
Verify mobile number to view the solution
Verify Mobile Number
Solutions
Question
3/10
4 / -1
The volume strength of perhydrol is
Correct
Wrong
Skipped
A
20
Correct
Wrong
Skipped
B
30
Correct
Wrong
Skipped
C
100
Correct
Wrong
Skipped
D
10
Question
4/10
4 / -1
TiH
1.73
is an examples of which type of the hydride?
Correct
Wrong
Skipped
A
Metallic
Correct
Wrong
Skipped
B
Ionic
Correct
Wrong
Skipped
C
Covalent
Correct
Wrong
Skipped
D
Polymeric
Question
5/10
4 / -1
Brackish water mostly contains
Correct
Wrong
Skipped
A
CaCl
2
Correct
Wrong
Skipped
B
BaSO
4
Correct
Wrong
Skipped
C
NaCl
Correct
Wrong
Skipped
D
Mineral acids
Question
6/10
4 / -1
Oxidation of formaldehyde with H
2
O
2
in the presence of pyrogallol produces light. The process is called
Correct
Wrong
Skipped
A
Luminescence
Correct
Wrong
Skipped
B
Chemiluminescence
Correct
Wrong
Skipped
C
Phosphorescence
Correct
Wrong
Skipped
D
Photosynthesis
Verify mobile number to view the solution
Verify Mobile Number
Solutions
Question
7/10
4 / -1
When Zn pieces are dropped in NaOH solution H
2(g)
is obtained and soluble ...... is obtamed
Correct
Wrong
Skipped
A
Na
2
ZnO
3
Correct
Wrong
Skipped
B
NaZnO
2
Correct
Wrong
Skipped
C
Na
4
ZnO
3
Correct
Wrong
Skipped
D
Na
3
ZnO
2
Question
8/10
4 / -1
H
2
can be obtained from mixture of CO
2
& H
2
by bubbling the mixture through
Correct
Wrong
Skipped
A
Water
Correct
Wrong
Skipped
B
Alkaline Ca
2
Cl
2
Correct
Wrong
Skipped
C
Conc H
2
SO
4
Correct
Wrong
Skipped
D
Hot NaCl solution
Question
9/10
4 / -1
The gas used in welding & cutting of metal is a strong ......
Correct
Wrong
Skipped
A
Reducing agent
Correct
Wrong
Skipped
B
Oxidising agent
Correct
Wrong
Skipped
C
Reducing & oxidising agent
Correct
Wrong
Skipped
D
Dehydrating agent
Question
10/10
4 / -1
Correct
Wrong
Skipped
A
Correct
Wrong
Skipped
B
Correct
Wrong
Skipped
C
Correct
Wrong
Skipped
D
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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