Hydrogen Test

Result

Hydrogen Test - 65

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Which of the following pairs will not produce dihydrogen gas ?

A
$$Cu + dil. HCl $$

B
$$Fe + H_2SO_4$$

C
$$Mg + steam$$

D
$$Mg + alcohol$$

Solution
Question 2
1 / -0

Which of the following aqueous solution can not be used as buffer solution?

A
$$NH_{4}OH+NH_{4}CI$$

B
HCN + KCN

C
AgCN

D
$$NH_{4}I$$
Question 3
1 / -0

Which gas is evolved when potassium carbonate is treated with dilute with $$HCl$$?

A
Hydrogen $$(H_{2})$$

B
Sulphur dioxide $$(SO_{2})$$

C
Carbon monoxide $$(CO)$$

D
Carbon dioxide $$(CO_{2})$$

Solution
Question 4
1 / -0

Only one element of forms hydride.

A
group 6

B
group 7

C
group 8

D
group 9
Question 5
1 / -0

Find the volume of strength of $${ H }_{ 2 }{ O }_{ 2 }$$ solutions prepared by mixing of 250 mL of 3 N $${ H }_{ 2 }{ O }_{ 2 }$$ and 750 mL of 1 N $${ H }_{ 2 }{ O }_{ 2 }$$ solution :-

A
1.5 V

B
8.4 V

C
5.6 V

D
11.2 V

Solution

Normality of total solution is given by :

$$N_1V_1 + N_2V_2 = N_f(V_1+V_2)$$

$$(250\times 3) +( 750\times1) = N_f(250+750)$$

$$750+750 = N_f (1000)$$

$$N_f =\dfrac{1500}{1000}$$ = $$1.5$$

Volume strength of $$H_2O_2 = 11.2\times M$$

In terms of normality,$$N = M\times n $$

n factor for $$H_2O_2$$ is 2

$$N = M\times 2 $$ and $$M= \dfrac{N}{2}$$

Volume strength =$$11.2\times \dfrac{N}{2}$$ = $$5.6 N$$= $$5.6\times Normality$$

Volume strength of $$H_2O_2$$ = $$5.6 \times 1.5$$ = $$ 8.4V$$

Hence, option B is correct .
Question 6
1 / -0

Which of the following hydrides of the oxygen family shows the lowest boiling points?

A
$${ H }_{ 2 }O$$

B
$${ H }_{ 2 }S$$

C
$${ H }_{ 2 }Se$$

D
$${ H }_{ 2 }Te$$
Question 7
1 / -0

$$A$$: About $$77\%$$ of industrial dihyducegen is produced from petro-chemicals.
$$R$$: Process of producing producer gas from coal is known as coal gasification as well as water gas shift reaction.

A
Both Assertion $$\&$$ Reason are true and the reason is the correct explanation of the assertion

B
Both Assertion $$\&$$ Reason are true but the reason is not the correct explanation of the assertion

C
Assertion is true statement but Reason is false.

D
Both Assertion and Reason are false statements.
Question 8
1 / -0

Which one of the following statements is incorrect?

A
Sodium hydride is ionic.

B
Beryllium chloride is covalent.

C
$${ CCl }_{ 4 }$$ gives a white ppt. with $${ AgNO }_{ 3 }$$ solution

D
Bonds in $$NaCl$$ are non-directional.
Question 9
1 / -0

Hydrogen is prepared from $${ H } _ { 2 }{ O }$$ by adding:

A
Ca, which acts as reducing agent

B
Al, which acts as oxidising agent

C
Ag, which acts as reducing agent

D
Au, which acts as oxidising agent
Question 10
1 / -0

Hydrogen peroxide is used as

A
An acid only

B
A reductant only

C
An oxidant only

D
An oxidant , a reductant and an acid.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Hydrogen Test - 65

Result

Hydrogen Test - 65

Score

-

Rank

-

SHARING IS CARING

Question 1

$$Cu + dil. HCl $$

$$Fe + H_2SO_4$$

$$Mg + steam$$

$$Mg + alcohol$$

Solution

Question 2

$$NH_{4}OH+NH_{4}CI$$

HCN + KCN

AgCN

$$NH_{4}I$$

Question 3

Hydrogen $$(H_{2})$$

Sulphur dioxide $$(SO_{2})$$

Carbon monoxide $$(CO)$$

Carbon dioxide $$(CO_{2})$$

Solution

Question 4

group 6

group 7

group 8

group 9

Question 5

1.5 V

8.4 V

5.6 V

11.2 V

Solution

Question 6

$${ H }_{ 2 }O$$

$${ H }_{ 2 }S$$

$${ H }_{ 2 }Se$$

$${ H }_{ 2 }Te$$

Question 7

Both Assertion $$\&$$ Reason are true and the reason is the correct explanation of the assertion

Both Assertion $$\&$$ Reason are true but the reason is not the correct explanation of the assertion

Assertion is true statement but Reason is false.

Both Assertion and Reason are false statements.

Question 8

Sodium hydride is ionic.

Beryllium chloride is covalent.

$${ CCl }_{ 4 }$$ gives a white ppt. with $${ AgNO }_{ 3 }$$ solution

Bonds in $$NaCl$$ are non-directional.

Question 9

Ca, which acts as reducing agent

Al, which acts as oxidising agent

Ag, which acts as reducing agent

Au, which acts as oxidising agent

Question 10

An acid only

A reductant only

An oxidant only

An oxidant , a reductant and an acid.

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.