Question

metals like aluminium , copper, silver etc

a) conduct heat easily

b) conduct electricity easily

c) have lustre

d) all of these​

Answer 1

Answer:

Here's Your Answer

Explanation:

d) all of these.

Answer 2

Corrected question:-

Choose the correct answer:

• Metals like aluminium, copper, silver, etc ______.

Options given:

(a) Conduct heat easily.

(b) Conduct electricity easily.

(c) Have lustre.

(d) All of these. $\:$

Answer:-

• Metals like aluminium, copper, silver, etc conducts heat and electricity easily. And they lustrous in nature. Hence, option - D (All of these) is correct.

Not only these three are the properties of metals. There are many properties like these, such as:

↪Generally, they are hard in nature, except Sodium and Potassium.

↪All of them have high density except Lithium, Sodium and Potassium as their density is less than 1g/cm³.

↪Metals are malleable (can be beaten into sheets) and ductile (can be drawn into wires) except Zinc.

↪Metals have high tensile strength except Zinc.

↪They are solid in room temperature except Mercury and Gallium (which are liquids).

↪ Metals have high melting and boiling points.

↪They are sonorous.

↪Metals which are more reactive than hydrogen, replace from the acid as well as from water.

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Additional Information:

Metals have various uses. Some of their uses are listed below.

• Iron (Fe)

It is mainly used in the form of steel (an alloy in which the major component is iron). So, we can say that it used in making buckets, chains, etc.

• Magnesium (Mg)

It is used in fireworks because it burns with a white dazzling flame. It is also used as the reducing agent in the extraction of metals.

• Lead (Pb)

It is used for making containers for liquids which are corrosive and protective screens for X-ray and other harmful radiations. It is used in automobile batteries.

• Aluminum (Al)

It is used in the manufacture of aircrafts and automobiles due to its light weight. It is used for making utensils and transmission cables.

• Zinc (Zn)

It is used in galvanization process (to protect iron from rusting) and used as a cathode container in making dry cells.

• Copper (Cu)

It is used in electroplating and electrolysis. Its salts are largely used as insecticides. It is used for making circuit boards and electronic devices.

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