Tag: introduction to non-metals

Questions Related to introduction to non-metals

Which of the following are characteristic property of non metals?

chemistry non-metals introduction to non-metals occurence of metals occurrence of metals and non metals

  1. Not malleable

  2. ductile

  3. Malleable

  4. Sonorous

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Correct Option: A
Explanation:

Non metals are generally not malleable as they can not be beaten into thin sheets. Substance which can be beaten into thin sheets are called malleable. Hence, option A is correct.

Bromine is

chemistry non-metals introduction to non-metals occurence of metals occurrence of metals and non metals

  1. Liquid metal

  2. Liquid non metal

  3. Gaseous non metal

  4. Solid non metal

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Correct Option: B
Explanation:

Non metals are generally solids and gases.They do not exist  as liquids except Bromine.Bromine is liquid.
Hence option B is correct.

State whether true or false :

All the elements having one electron in their outermost shell are metals.

chemistry metals and non metals introduction to non-metals occurence of metals occurrence of metals and non metals

  1. True

  2. False

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Correct Option: B
Explanation:

Hydrogen has one electron in its outermost shell with electronic configuration of $1s^1$ but it is a non-metal. therefore all elements having one electron in their outermost shell are not metals. Hydrogen is an exception.


 Therefore, option B is correct.

The most abundant metal in the earth's crust is :

chemistry metals and non metals introduction to non-metals occurence of metals occurrence of metals and non metals

  1. Oxygen

  2. Aluminium

  3. Calcium

  4. Gold

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Correct Option: B
Explanation:

Percent abundance of given elements in the earth's crust are :


Oxygen - 46.6%
Aluminium - 8.1%
calcium-3.63%
gold-0.0011%

But oxygen is a non-metal and aluminium, calcium and gold are metals. 

Therefore, Aluminium is the most abundant metal in the earth's crust.

Therefore, option B is correct.

Elements are classified into four major categories:

chemistry metals and non metals introduction to non-metals occurence of metals occurrence of metals and non metals

  1. Metals.

  2. non-metals.

  3. Metalloids.

  4. Noble Gases.

  5. All of the above.

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Correct Option: E
Explanation:

Elements are classified into four major categories: Metals, non-metals, Metalloids, and noble gases

The second most abundant metal present in the crust of the earth is :

chemistry metals and non metals introduction to non-metals occurence of metals occurrence of metals and non metals

  1. $Ca$

  2. $Al$

  3. $Cu$

  4. $Fe$

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Correct Option: D
Explanation:

Iron is the second most abundant metal in the earths crust. It is found in the molten form inside the crust of the earth. In the presence of air and moisture it forms its oxide but the alloy of steel is widely used as pipes,it is unreactive in nature.

________ are elements which can accept one or more electrons and form negative ions.

chemistry metals and non metals introduction to non-metals occurence of metals occurrence of metals and non metals

  1. Metals

  2. Non-metals

  3. Metalloids

  4. None of these

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Correct Option: B
Explanation:

Non-metals are elements which can accept one or more electrons and form negative ions.

Most abundant element in the earth's crust is:

chemistry general principles and processes of isolation of elements introduction to non-metals occurence of metals occurrence of metals and non metals

  1. Hydrogen

  2. Oxygen

  3. Aluminium

  4. Silicon

Show answer
Correct Option: B
Explanation:

Percentage abundance of the given elements in the earth's crust is :


Hydrogen - 0.14%
Oxygen - 46.6%
Aluminium - 8.1%
Silicon - 27.7% 

Therefore option B, oxygen is correct.