Hydrogen Test

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Hydrogen Test - 14

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Weekly Quiz Competition

Question 1
4 / -1

If an isotope of hydrogen has two neutrons in its atom, its atomic number and atomic mass number will respectively be

A
2 and 1

B
3 and 1

C
1 and 1

D
1 and 3
Question 2
4 / -1

At its melting point ice is lighter than water because

A
H₂O molecules are more closely packed in solid state

B
Ice crystals have hollow hexagonal arrangement of H₂O molecules

C
On melting of ice the H₂O molecule shrinks in size

D
Ice forms mostly heavy water on first melting
Question 3
4 / -1

Decomposition of H₂O₂ is favoured by

A
Traces of acids

B
Alcohol

C
Acetanilide

D
MnO
Question 4
4 / -1

The maximum possible number of hydrogen bonds a water molecule can form in ice is

A
1

B
2

C
3

D
4
Question 5
4 / -1

One would expect proton to have very large

A
Charge

B
Ionization potential

C
Hydration energy

D
Radius
Question 6
4 / -1

The O─O─H bond angle in H₂O₂is

A
106º

B
109º28’

C
120º

D
97º
Question 7
4 / -1

The oxide that gives H₂O₂ on treatment with dilute acid is

A
PbO₂

B
Na₂O₂

C
MnO₂

D
TiO₂

Solution
Question 8
4 / -1

Which of the following groups of ions makes the water hard?

A
Sodium and bicarbonate

B
Magnesium and chloride

C
Potassium and sulphate

D
Ammonium and chloride
Question 9
4 / -1

The correct order of the O─O bond length in O₂, H₂O₂and O₂ is

A
O₂ > O₃> H₂O₂

B
O₃ > H₂O > O₂

C
H₂O₂ > O₃ >O₂

D
O₂ > H₂O >O₃
Question 10
4 / -1

The volume strength of 1.5 N H₂O₂ solution is

A
4.8 L

B
5.2 L

C
8.4 L

D
8.8 L

Solution

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Re-Attempt Weekly Quiz Competition

Hydrogen Test - 14

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Hydrogen Test - 14

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Question 1

2 and 1

3 and 1

1 and 1

1 and 3

Question 2

H2O molecules are more closely packed in solid state

Ice crystals have hollow hexagonal arrangement of H2O molecules

On melting of ice the H2O molecule shrinks in size

Ice forms mostly heavy water on first melting

Question 3

Traces of acids

Alcohol

Acetanilide

MnO

Question 4

1

2

3

4

Question 5

Charge

Ionization potential

Hydration energy

Radius

Question 6

106º

109º28’

120º

97º

Question 7

PbO2

Na2O2

MnO2

TiO2

Solution

Question 8

Sodium and bicarbonate

Magnesium and chloride

Potassium and sulphate

Ammonium and chloride

Question 9

O2 > O3> H2O2

O3 > H2O > O2

H2O2 > O3 >O2

O2 > H2O >O3

Question 10

4.8 L

5.2 L

8.4 L

8.8 L

Solution

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H₂O molecules are more closely packed in solid state

Ice crystals have hollow hexagonal arrangement of H₂O molecules

On melting of ice the H₂O molecule shrinks in size

PbO₂

Na₂O₂

MnO₂

TiO₂

O₂ > O₃> H₂O₂

O₃ > H₂O > O₂

H₂O₂ > O₃ >O₂

O₂ > H₂O >O₃