Metals and Non- Metals Test

Result

Metals and Non- Metals Test - 5

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

One day, Geeta went to a jeweller's shop to give her old gold jewellery for polish. When she brought the jewellery back, she found that there was a slight loss in its weight. The main reason for weight loss of gold jewellery is when a goldsmith dips the jewellery in

A
conc. HCl + conc. HNO₃

B
aqueous HNO₃+ conc. HCl

C
aqueous solution of conc. HCl + conc. H₂SO₄

D
aqueous solution of aqueous HCl + aqueous H₂SO₄

Solution

A goldsmith dips jewellery in a solution of aqua regia (a 1 : 3 mixture of concentrated nitric acid and concentrated hydrochloric acid). It is a very strong acid and can dissolve noble metals like gold, platinum and silver etc. That's why, when jeweller dips gold jewellery in this liquid, the upper layer is removed. Due to this, gold jewellery shines but its weight is lost.
Question 2
1 / -0

Riya's class teacher explained the physical properties of non-metals. According to her teacher, the non-metal that is in solid state and has lustre is

A
bromine

B
iodine

C
carbon

D
silicon

Solution

Iodine is the non-metal which is in solid state and has lustre.
Question 3
1 / -0

Raju is a student of class VIII and is curious to know the chemical nature of metals. While testing the chemical nature of metals, he noticed that a metal oxide reacts with dilute solutions of both acids and bases to produce hydrogen gas. This metal oxide is

A
magnesium

B
copper

C
aluminium

D
sodium

Solution

Aluminium forms amphoteric oxid, which reacts with both acids and bases to produce hydrogen gas, as shown below.

Question 4

1 / -0

Match Column - A (non-metal) with Column - B (with their uses).

Column - A	Column - B
(i) Phosphorus and nitrogen	(a) Essential for breathing
(ii) Iodine	(b) Disinfectant
(iii) Chlorine	(c) Essential for plant growth
(iv) Oxygen	(d) Antiseptic

(i) - (d), (ii) - (a), (iii) - (b), (iv) - (c)

(i) - (b), (ii) - (d), (iii) - (c), (iv) - (a)

(i) - (a), (ii) - (b), (iii) - (d), (iv) - (c)

(i) - (c), (ii) - (d), (iii) - (b), (iv) - (a)

Solution

All are correctly matched.
i. Phosphorous and nitrogen are important constituents of fertiliser, which is essential for plant's growth.
ii. Iodine mixed with alcohol acts as an antiseptic.
iii. Chlorine acts as a disinfectant.
iv. Oxygen is the most important part of our environment, which is essential for breathing of all living world.

Question 5
1 / -0

While performing an experiment in chemistry lab, Ram prepares four solutions in test tubes 'A', 'B', 'C' and 'D', respectively. In test tube 'A', he adds copper sulphate solution. In test tube 'B', he adds zinc sulphate solution. In test tube 'C', he adds magnesium sulphate solution and in test tube 'D', he adds solution of calcium sulphate. After that, he adds iron nails in all test tubes. After some time, he notices that there is change in colour of solution in one of the test tubes. He observes the change in colour in which of the following test tubes and what is the changed colour?

A
Test tube 'D', brown colour

B
Test tube B', blue colour

C
Test tube 'C', blue colour

D
Test tube 'A, green colour

Solution

Iron (Fe) is more reactive than copper. It will displace copper from its solution and give green coloured solution of FeSO₄.
Question 6
1 / -0

Ram's class teacher, while explaining the acidic and basic nature of metals and non-metals, tells that metallic oxides are basic in nature while non-metal oxides are acidic in nature. According to her, the aqueous solution of oxide that converts blue litmus into red is

A
magnesium oxide

B
sodium oxide

C
sulphur dioxide

D
potassium oxide

Solution

Sulphur dioxide is a non-metallic oxide. Its aqueous solution is acidic in nature and converts blue litmus red.
Question 7
1 / -0

According to Sweta's class teacher, metals are good conductors of electricity and heat. She tells Sweta about a liquid metal that is used in thermometers to test body temperature. The name of that liquid metal is

A
sodium

B
mercury

C
potassium

D
calcium

Solution

Mercury is the liquid metal that is used in thermometers.
Question 8
1 / -0

Reeta's mother bought a statue made of copper. After few months, she noticed that the shine of the statue disappeared and green coloured coating appeared on it. The green coloured coating is due to the formation of

A
Cu(OH)₂ + CuCO₃

B
Cu(OH)₂ + CuO

C
CuO + CuCO₃

D
CuSO₄ + Cu(OH)₂

Solution

When copper is exposed to moist air for a long time, it acquires a dull green coating. This green material is a mixture of copper hydroxide and copper carbonate.
Question 9
1 / -0

A substance 'X', when burnt in air, leaves a white residue. The aqueous solution of this white residue turns red litmus blue. The substance 'X' and its chemical nature is

A
metal, basic

B
metal, acidic

C
non-metal, basic

D
non-metal, acidic

Solution

The given substance 'X' is a metal. When burnt in air, it produces a white residue of its oxide. The aqueous solution of metallic oxide is basic in nature and turns red litmus blue.
Question 10
1 / -0

Which of the following metals should be used to make a tanker to store hot water?

A
Magnesium

B
Aluminium

C
Copper

D
Iron

Solution

Steel is made of iron, which reacts vigorously with hot water to form iron oxide and hydrogen gas, which is dangerous. Copper metal should be used, which is passive with respect to hot water.
Question 11
1 / -0

Which of the following properties of aluminium makes it useful to make parts of airplanes?

A
Hard and high density

B
Hard and low density

C
Ductile and high density

D
Malleable and soft

Solution

Aluminium, when mixed with other metals, gives hard alloy with low density, which makes it suitable for making parts of airplanes.
Question 12
1 / -0

Directions: Read the given statements carefully and mark the correct answer.

Statement I: Nowadays, instead of copper, aluminium is used to make electrical wires.
Statement II: Aluminium is cheaper than copper, that's why it is a good substitute of copper.

A
Both statements I and II are correct and statement II is the correct explanation of I.

B
Both statements I and II are correct and statement II is not the correct explanation of I.

C
Only statement I is correct.

D
Both statements I and II are incorrect.

Solution

Aluminium is used to make electrical wires because aluminium is cheaper than copper.
Question 13
1 / -0

Heena's class teacher told her that silver and gold metals do not react with air and water. But, she noticed that her payal tarnished after some time. The reason of tarnishing of her silver payal is reaction with

A
noble metals

B
CO₂

C
N₂

D
H₂S

Solution

Silver metal is passive with air and water, but it reacts with H₂S in air to form silver sulphide, which is black in colour.
Question 14
1 / -0

While performing an experiment, Rohit added HCl in a test tube containing metal 'X' and no effervescence was produced. This means that no hydrogen gas was produced. According to his class teacher, the metal 'X' is

A
iron

B
sodium

C
aluminium

D
copper

Solution

Less reactive metals like copper, gold and silver do not react with acids. They cannot displace hydrogen from acidic solution.
Question 15
1 / -0

Riya often feels fatigue and weakness. Her doctor diagnosed her haemoglobin level as being low. This is due to the deficiency of a certain element. The name of the element is

A
iodine

B
iron

C
oxygen

D
copper

Solution

Iron is an important component of the red coloured pigment in blood called haemoglobin. Deficiency of iron causes anaemia, which causes lower level of blood haemoglobin, resulting in fatigue and weakness.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Metals and Non- Metals Test - 5

Result

Metals and Non- Metals Test - 5

Score

-

Rank

-

SHARING IS CARING

Question 1

conc. HCl + conc. HNO3

aqueous HNO3 + conc. HCl

aqueous solution of conc. HCl + conc. H2SO4

aqueous solution of aqueous HCl + aqueous H2SO4

Solution

Question 2

bromine

iodine

carbon

silicon

Solution

Question 3

magnesium

copper

aluminium

sodium

Solution

Question 4

(i) - (d), (ii) - (a), (iii) - (b), (iv) - (c)

(i) - (b), (ii) - (d), (iii) - (c), (iv) - (a)

(i) - (a), (ii) - (b), (iii) - (d), (iv) - (c)

(i) - (c), (ii) - (d), (iii) - (b), (iv) - (a)

Solution

Question 5

Test tube 'D', brown colour

Test tube B', blue colour

Test tube 'C', blue colour

Test tube 'A, green colour

Solution

Question 6

magnesium oxide

sodium oxide

sulphur dioxide

potassium oxide

Solution

Question 7

sodium

mercury

potassium

calcium

Solution

Question 8

Cu(OH)2 + CuCO3

Cu(OH)2 + CuO

CuO + CuCO3

CuSO4 + Cu(OH)2

Solution

Question 9

metal, basic

metal, acidic

non-metal, basic

non-metal, acidic

Solution

Question 10

Magnesium

Aluminium

Copper

Iron

Solution

Question 11

Hard and high density

Hard and low density

Ductile and high density

Malleable and soft

Solution

Question 12

Both statements I and II are correct and statement II is the correct explanation of I.

Both statements I and II are correct and statement II is not the correct explanation of I.

Only statement I is correct.

Both statements I and II are incorrect.

Solution

conc. HCl + conc. HNO₃

aqueous HNO₃+ conc. HCl

aqueous solution of conc. HCl + conc. H₂SO₄

aqueous solution of aqueous HCl + aqueous H₂SO₄

Cu(OH)₂ + CuCO₃

Cu(OH)₂ + CuO

CuO + CuCO₃

CuSO₄ + Cu(OH)₂

CO₂

N₂

H₂S