Materials Metals and Non Metals Test

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Materials Metals and Non Metals Test - 21

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Weekly Quiz Competition

Question 1
1 / -0

When Amrita was asked to pick up a few articles from a collection, she picked up the following:
Wooden scale, glass test tube and paper basket.
Which article is she most likely to pick up next?

A
Steel cup

B
Iron chain

C
Rubber gloves

D
Copper wire

Solution

Wooden scale, glass test tube, paper basket are all non-metals and are poor conductors of heat and electricity. Rubber gloves have similar properties. So, based on these properties she will likely pick up rubber gloves next.

Hence, option C is correct.
Question 2
1 / -0

The non-metal that has a metallic lustre and sublimes on heating is_______.

A
Iodine

B
Oxygen

C
Fluorine

D
Carbon

Solution

The non-metal that has a metallic luster and sublimes on heating is iodine. Iodine is an intensely colored solid with an almost metallic luster. This solid is relatively volatile and it sublimes when heated to form a violet-colored gas.
Hence, option A is correct.
Question 3
1 / -0

Which of the following metal/non metal is stored in water?

A
Sodium

B
Mercury

C
Oxygen

D
Phosphorous

Solution

Phosphorus is a very reactive non-metal. It readily catches fire if exposed to air. So to prevent contact of phosphorous with atmospheric oxygen, it is stored in water.

Option $$D$$ is correct.
Question 4
1 / -0

Which of the following non-metals is yellow in colour?

A
Sulphur

B
Iodine

C
Phosphorus

D
None of the above

Solution

Pure sulfur is a tasteless, odourless, brittle solid that is pale yellow in colour.
Iodine is a nonmetallic, nearly black solid at room temperature and has a glittering crystalline appearance.
Phosphorus has different colours -- white phosphorus, red phosphorus, violet phosphorus and black phosphorus.
Question 5
1 / -0

Metal which gives out sound when struck are called ________.

A
ductile

B
sonorous

C
malleable

D
All of these
Question 6
1 / -0

Non-metals + acids $$\rightarrow$$

A
slow reaction

B
violent reaction

C
moderate reaction

D
no reaction

Solution

Nonmetals do not react with acids, Thus, option $$D$$ is correct
Question 7
1 / -0

Which of the following is a property of non-metal?

A
Low densities

B
Low melting points

C
Poor conductor of electricity

D
All of the above

Solution

Non-metals are poor conductor of electricity, non-lustrous, brittle in nature, non-ductile and not malleable. They also have low densities and low melting points.
So, answer is $$D$$.
Question 8
1 / -0

When zinc reacts with dilute $$NaOH,$$ the products formed are:

A
$$H_2+Zn(OH)_2+Na$$

B
$$H_2+ZnO+Na$$

C
$$H_2+Na_2ZnO_2$$

D
$$NaOH+H_2+ZnO$$

Solution

Metals react with bases to form a salt and release hydrogen gas.

Zinc reacts with dilute $$NaOH$$ as follows:

$$Zn$$ + $$2NaOH\rightarrow$$ $$H_2$$ + $$Na_2ZnO_2$$

Hence, option C is correct.
Question 9
1 / -0

Which of the following reactions cannot occur?

A
$$Fe\, +\, CuSO_4\, \rightarrow FeSO_4\, +\, Cu$$

B
$$Zn\, +\, FeSO_4\, \rightarrow FeSO_4\, +\, Fe$$

C
$$Fe\, +\, ZnSO_4\, \rightarrow FeSO_4\, +\, Zn$$

D
Both (A) and (B)

Solution

$$Fe\, +\, ZnSO_4\, \rightarrow$$ No reaction

Iron being less reactive than zinc so, cannot displace zinc from its salt solution, therefore, the reaction cannot take place.
Question 10
1 / -0

The metal which does not react with air is:

A
sodium

B
calcium

C
gold

D
aluminum

Solution

Sodium, calcium, and aluminum all react with air except gold.
Metal gold doesn't react with atmospheric air since it is inert toward any reaction.

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Re-Attempt Weekly Quiz Competition

Materials Metals and Non Metals Test - 21

Result

Materials Metals and Non Metals Test - 21

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SHARING IS CARING

Question 1

Steel cup

Iron chain

Rubber gloves

Copper wire

Solution

Question 2

Iodine

Oxygen

Fluorine

Carbon

Solution

Question 3

Sodium

Mercury

Oxygen

Phosphorous

Solution

Question 4

Sulphur

Iodine

Phosphorus

None of the above

Solution

Question 5

ductile

sonorous

malleable

All of these

Question 6

slow reaction

violent reaction

moderate reaction

no reaction

Solution

Question 7

Low densities

Low melting points

Poor conductor of electricity

All of the above

Solution

Question 8

$$H_2+Zn(OH)_2+Na$$

$$H_2+ZnO+Na$$

$$H_2+Na_2ZnO_2$$

$$NaOH+H_2+ZnO$$

Solution

Question 9

$$Fe\, +\, CuSO_4\, \rightarrow FeSO_4\, +\, Cu$$

$$Zn\, +\, FeSO_4\, \rightarrow FeSO_4\, +\, Fe$$

$$Fe\, +\, ZnSO_4\, \rightarrow FeSO_4\, +\, Zn$$

Both (A) and (B)

Solution

Question 10

sodium

calcium

gold

aluminum

Solution

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