Metals and Non-metals Test

Result

Metals and Non-metals Test - 26

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 metal is used to connect solar cell to solar panels?

A
Gold

B
Silver

C
Copper

D
Aluminium

Solution

Silver is the best conductor of electricity, therefore it is used to connect solar cells to solar panels.
Gold is not the good conductor of electricity, so it is not used to connect solar cells.
Copper and aluminium are good conductors of electricity but are not used for connecting solar panels. Copper is used for making solar cells and solar panels but not for connecting them.
So the correct option is $$B$$.
Question 2
1 / -0

During extraction of metals, electrolytic refining is used to obtain pure metals. Material which will be used as anode, for refining of silver metal by this process, is:

A
zinc

B
impure silver

C
pure silver

D
iron

Solution

In the electrolytic refining process, the impure metal is made the anode and a thin strip of pure metal is made the cathode. Thus, for refining silver, impure silver would be used as the anode.
Question 3
1 / -0

Which of the following metal occur in the native form?

A
Lithium

B
Silver

C
Calcium

D
Sodium

Solution

Silver occurs in native forms since it is very less reactive metals.
Question 4
1 / -0

2 ml each of concentrated $$HCl$$, $$HNO_{3}$$ and a mixture of concentrated $$HCl$$ and concentrated $$HNO_{3}$$ in the ratio of 3 : 1 were taken in test tubes labelled as A, B and C. A small piece of metal was put in each test tube. No change occurred in test tubes A and B but the metal got dissolved in test tube C respectively. The metal could be :

A
$$Al$$

B
$$Au$$

C
$$Cu$$

D
$$Pt$$

Solution

As per the given question, the Aqua regia is the given mixture to test the metals in test tubes A, B and C. A mixture of three parts of concentrated hydrochloric acid and one part of concentrated nitric acid(Aqua regia - 3:1 ratio) is capable of dissolving gold.
Gold is a metal that cannot be dissolved in dilute acids and dissolves only in aqua regia.
Hence, the metal in test tube C must be gold (Au). The correct option is (B).
Question 5
1 / -0

Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable, and are colored.
Non-metal which is required for combustion is ______________.

A
nitrogen

B
chlorine

C
oxygen

D
sulphur

Solution

The non-metal which is required for the combustion is $$\text{oxygen}$$. In a combustion reaction, any combustible substance reacts with oxygen gas to form the product.
For example : $$CH_{{4}{(g)}} + 2O_{{2}{(g)}} \longrightarrow CO_{{2}{(g)}} + 2H_2O_{(l)}$$
Question 6
1 / -0

Which of the following metals exist in their native state in nature?
(i) Ca
(ii) Au
(iii) Zn
(iv) Ag

A
(i) and (ii)

B
(ii) and (iii)

C
(ii) and (iv)

D
(iii) and (iv)

Solution

Non-reactive metals like gold and silver are found in the free state. Hence, option $$C$$ is correct.
Question 7
1 / -0

Reaction of metals with sulphuric acid produced :

A
$$SO_2$$ gas

B
$$H_2$$ gas

C
$$O_2$$ gas

D
$$SO_3$$ gas

Solution

Metals react with acids to give a salt and hydrogen gas.
Reaction:
$$2M+H_2SO_4 \rightarrow M_2SO_4 +H_2$$
Question 8
1 / -0

Which of the following metals gives hydrogen with dil. $$HNO_{3}$$?

A
$$Mg$$

B
$$Zn$$

C
$$Al$$

D
$$Sn$$

Solution

Magnesium ($$Mg$$) reacts with very dilute $$HNO_3$$ to evolve $$H_2$$ gas.

$$Mg + 2HNO_3\rightarrow Mg(NO_3)_2 + H_2$$
Question 9
1 / -0

Name two product of the given reaction.
$$Zn + \underset{(Steam)}{H_2O} \rightarrow $$

A
Zinc oxide, hydrogen

B
Zinc, water

C
Zinc oxide, water

D
Zinc, hydrogen

Solution

Zinc does not react with hot or cold water but reacts with steam to form Zinc oxide and Hydrogen.
$$ Zn + H_{2}O \rightarrow ZnO + H_{2}$$
(steam)
Question 10
1 / -0

A metal which reacts with cold water vigorously producing hydrogen is:

A
zinc

B
tungsten

C
sodium

D
mercury

Solution

Metals like zinc, tungsten, and mercury do not readily react with cold water. On the other hand, alkali metals are the most reactive metals in the periodic table so, when sodium is brought in contact with cold water, it reacts vigorously. The reaction is violent and exothermic.
$$2Na(s)\;+2H_2O(l)\rightarrow2NaOH(aq)+\;H_2(g)$$
So the correct option is C.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Metals and Non-metals Test - 26

Result

Metals and Non-metals Test - 26

Score

-

Rank

-

SHARING IS CARING

Question 1

Gold

Silver

Copper

Aluminium

Solution

Question 2

zinc

impure silver

pure silver

iron

Solution

Question 3

Lithium

Silver

Calcium

Sodium

Solution

Question 4

$$Al$$

$$Au$$

$$Cu$$

$$Pt$$

Solution

Question 5

nitrogen

chlorine

oxygen

sulphur

Solution

Question 6

(i) and (ii)

(ii) and (iii)

(ii) and (iv)

(iii) and (iv)

Solution

Question 7

$$SO_2$$ gas

$$H_2$$ gas

$$O_2$$ gas

$$SO_3$$ gas

Solution

Question 8

$$Mg$$

$$Zn$$

$$Al$$

$$Sn$$

Solution

Question 9

Zinc oxide, hydrogen

Zinc, water

Zinc oxide, water

Zinc, hydrogen

Solution

Question 10

zinc

tungsten

sodium

mercury

Solution

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.