Hydrogen Test

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Hydrogen Test - 52

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Weekly Quiz Competition

Question 1
1 / -0

The surface tension of which of the following liquid is maximum

A
$$ H_{2}O $$

B
$$ C_{6}H_{6} $$

C
$$ CH_{3}OH $$

D
$$ C_{2}H_{6}OH $$

Solution

The water molecules attract one another due to its polar property, the hydrogen ends which are positive in comparison with the negative end of oxygen which makes water to stick together so water having maximum surface tension.
Question 2
1 / -0

What happens when electric current is passed through an ionic hydride in the molten state?

A
Hydrogen is liberated at the anode

B
Hydrogen is liberated at the cathode

C
No reaction takes place

D
Hydride ion migrates towards cathode

Solution

$$M^+H^- \rightarrow M^+ + H^-$$ where M is a metal.

At anode:
$$2H^- \rightarrow H_2 + 2e^-$$
Question 3
1 / -0

In all its properties, hydrogen resembles

A
alkali metals only

B
halogens only

C
both alkali metals and halogens

D
neither alkali metals nor halogens

Solution

In all its properties, hydrogen resembles both alkali metals and halogens. It looses 1 electron to form cation like alkali metals and gains 1 electron to form anion like halogens.
Question 4
1 / -0

Hydrogen readily combines with non-metals and thus it shows its

A
electronegativity character

B
electropositive character

C
both (A) and (B)

D
none of these

Solution

$$H_2 + Cl_2 \rightarrow 2HCl$$

Here, hydrogen combines with non metal chlorine and shows it's electropositive character.
Question 5
1 / -0

lonization energy of hydrogen is

A
Equal to that of chlorine

B
Lesser than that of chlorine

C
Slightly higher than that of chlorine

D
Much higher than that of chlorine

Solution

lonization energy of hydrogen (1311 KJ per mole) is slightly greater than that of chlorine (1256 KJ per mole).
Question 6
1 / -0

Which of the following explanation is best for not placing hydrogen with alkali metals or halogen?

A
The ionization energy of hydrogen is too high for group of alkali metals but too low for halogen group

B
Hydrogen can form compounds

C
Hydrogen is a much lighter element than the alkali metals or halogens

D
Hydrogen atom does not contain any neutron

Solution

The ionization energy of hydrogen is too high for group of alkali metals, but too low for halogen group.
Question 7
1 / -0

Hydrogen resembles in many of its properties with

A
halogens

B
alkali metals

C
both (A) and (B)

D
None of these

Solution

$$H_2$$ like halogens gains one electron to form stable duplet.
Also, it looses one electron like alkali metals to form $$H^+$$ ion.
Hence, correct option is (C).
Question 8
1 / -0

Protonic acid is

A
an compound that form solvated hydrogen ion in polar solvent

B
an acid which accepts the proton

C
a compound that forms hydride ion in polar solvent

D
an acid which donates the proton

Solution

An acid that forms positive hydrogen ions (or, strictly, oxonium ions) in aqueous solution is a protonic acid.
Question 9
1 / -0

Triple point of water is

A
273 K

B
373 K

C
203 k

D
193 K

Solution

The triple point of any substance is that temperature and pressure at which the material can exists in all three phases (Solid, liquid and gas) in equilibrium specifically the triple point of water is 273.16 K at 611.2 Pa.
Question 10
1 / -0

Maximum number of hydrogen bonding in a $$ H_{2}O $$ molecule is

A
1

B
2

C
3

D
4

Solution

Maximum number of hydrogen bonding in a $$H_2O$$ molecule is 4.

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Re-Attempt Weekly Quiz Competition

Hydrogen Test - 52

Result

Hydrogen Test - 52

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Question 1

$$ H_{2}O $$

$$ C_{6}H_{6} $$

$$ CH_{3}OH $$

$$ C_{2}H_{6}OH $$

Solution

Question 2

Hydrogen is liberated at the anode

Hydrogen is liberated at the cathode

No reaction takes place

Hydride ion migrates towards cathode

Solution

Question 3

alkali metals only

halogens only

both alkali metals and halogens

neither alkali metals nor halogens

Solution

Question 4

electronegativity character

electropositive character

both (A) and (B)

none of these

Solution

Question 5

Equal to that of chlorine

Lesser than that of chlorine

Slightly higher than that of chlorine

Much higher than that of chlorine

Solution

Question 6

The ionization energy of hydrogen is too high for group of alkali metals but too low for halogen group

Hydrogen can form compounds

Hydrogen is a much lighter element than the alkali metals or halogens

Hydrogen atom does not contain any neutron

Solution

Question 7

halogens

alkali metals

both (A) and (B)

None of these

Solution

Question 8

an compound that form solvated hydrogen ion in polar solvent

an acid which accepts the proton

a compound that forms hydride ion in polar solvent

an acid which donates the proton

Solution

Question 9

273 K

373 K

203 k

193 K

Solution

Question 10

1

2

3

4

Solution

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