Hydrogen Test

Result

Hydrogen Test - 67

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Weekly Quiz Competition

Question 1
1 / -0

The oxide that gives hydrogen peroxide $$({ H }_{ 2 }{ O }_{ 2 })$$ on the treatment with a dilute acid $$({ H }_{ 2 }{ SO }_{ 4 })$$ is

A
$${ MnO }_{ 2 }$$

B
$${ PbO }_{ 2 }$$

C
$$Na_{ 2 }{ O }_{ 2 }$$

D
$${ TiO }_{ 2 }$$

Solution

$$Na_2O_2$$ upon reacting with dilute sulphuric acid gives hydrogen peroxide and sodium sulphate.
The chemical reaction is as follows :
$$Na_2O_2 + H_2SO_4 \xrightarrow \ Na_2SO_4 + H_2O_2$$
Question 2
1 / -0

Which is accepted structure of $$\mathrm { H } _ { 2 } \mathrm { O } _ { 2 }$$ in gas phase?

A

B

C
Both (A) and (B)

D
None of these
Question 3
1 / -0

Ammonia gas dissolves in water to form $${NH}_{4}OH$$. In this reaction water acts as:

A
a conjugate base

B
a non polar solvent

C
an acid

D
a base

Solution
Question 4
1 / -0

The dihedral angle in gaseous $${ H }_{ 2 }{ O }_{ 2 }$$ is

A
$${ 180 }^{ 0 }$$

B
$${ 90 }^{ 0 }$$

C
$$111.{ 5 }^{ 0 }$$

D
$${ 109 }^{ 0 }{ 28 }^{ ' }$$
Question 5
1 / -0

Which of the following represents the formula of water gas?

A
$$CO+{ H }_{ 2 }$$

B
$$CO+{ N }_{ 2 }$$

C
$$CO+{ H }_{ 2 }O$$

D
$$CO_{ 2 }+{ H }_{ 2 }$$

Solution
Question 6
1 / -0

Volume strength of hydrogen peroxide is $$ 22.4V$$. What volume of this sample is required for the oxidation of 3.4 g of hydrogen sulphide?

A
50 ml

B
200 ml

C
100 ml

D
5 ml

Solution
Question 7
1 / -0

Which of the following is not correct regarding electrolytic preparation of $$ H_2O_2 $$ ?

A
50 % concentrated $$ H_2SO_4 $$ is used

B
$$ S_2O^{2-}_8 $$ ion is deposited at anode

C
Dilute $$ H_2SO_4 $$ is used

D
Sulphuric acid undergoes oxidation

Solution
Question 8
1 / -0

The dipole moment of $${ H }_{ 2 }{ O }_{ 2 }$$ is 2.1D. This indicates that the structure of $${ H }_{ 2 }{ O }_{ 2 }$$ is:

A
Linear

B
Non-linear

C
Symmetrical

D
none of these

Solution
Question 9
1 / -0

Statement (I): Position of Hydrogen is still uncertain in the modern periodic table.
Statement (II): The Long form of the periodic table reflects the exact distribution of electrons among all the orbitals of an atom.

A
A statement I is correct, II is incorrect.

B
Statement II is correct, I is incorrect.

C
Both statements I and II are correct.

D
Both statements I and II are incorrect.

Solution
Question 10
1 / -0

Hydride which has polymeric structure :

A
$$CaH_2$$

B
$$NaH$$

C
$$B_2H_6$$

D
$$BeH_2$$