Tag: chemical properties and uses of metals and non-metals

Questions Related to chemical properties and uses of metals and non-metals

Which of the following non-metal is commonly used for purifying water?

chemistry metals chemical properties and uses of metals and non-metals introduction to metals physical properties of non-metals

  1. Sulphur

  2. Oxygen

  3. Chlorine

  4. Xenon

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Correct Option: C
Explanation:

Chlorine is one of the most commonly used disinfectants for water disinfection. Chlorine can be applied for the deactivation of most microorganisms and it is relatively cheap. Although several methods eliminate disease-causing microorganisms in water, chlorination is the most commonly used. Chlorination is effective against many pathogenic bacteria, but at normal dosage rates it does not kill all viruses, cysts, or worms. When combined with filtration, chlorination is an excellent way to disinfect drinking water supplies.

Graphite is most commonly used in:

chemistry metals chemical properties and uses of metals and non-metals introduction to metals physical properties of non-metals

  1. pesticides

  2. pencil leads

  3. water purification

  4. fertilizers

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Correct Option: B
Explanation:

Cores of pencil are made of graphite which leaves grey or black marks that can be easily erased. Graphite pencils are useful for writing as well as drawing too. 

Liquid metals used for making thermometer is:

chemistry metals chemical properties and uses of metals and non-metals introduction to metals physical properties of non-metals

  1. zirconium

  2. mercury

  3. lead

  4. none of the above

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Correct Option: B
Explanation:

Mercury is the only liquid. Except mercury all metals are solids at room temperature. Mercury is used for making thermometer.

Which of the following metal is used in atomic energy and space projects?

chemistry metals chemical properties and uses of metals and non-metals introduction to metals physical properties of non-metals

  1. Titanium

  2. Zirconium

  3. Sodium

  4. All of above

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Correct Option: D
Explanation:

Titanium, sodium and zirconium metals are used in atomic energy and space science projects.

Tungsten filament is:

chemistry metals chemical properties and uses of metals and non-metals introduction to metals physical properties of non-metals

  1. non-polar covalent substance

  2. polar covalent substance

  3. ionic substance

  4. metallic substance

  5. noble gas

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Correct Option: D
Explanation:

Tungsten filament represents metallic substance.
Tungsten is a metal. Other examples of metals include iron, copper, aluminium, magnesium, sodium, lead, zinc etc.

Non-metal which is essential for our life and all living beings inhale it during breathing is :

chemistry metals chemical properties and uses of metals and non-metals introduction to metals physical properties of non-metals

  1. oxygen

  2. nitrogen

  3. hydrogen

  4. water

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Correct Option: A
Explanation:

An essential non metal used in breathing by all living beings is 'Oxygen'

A purple coloured non-metal forms a brown solution in alcohol which is applied on wounds as an antiseptic. The non-metal is :

chemistry metals chemical properties and uses of metals and non-metals introduction to metals physical properties of non-metals

  1. iodine

  2. bromine

  3. chlorine

  4. sulphur

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Correct Option: A
Explanation:

Iodine is a natural dark violet, non-metallic element that plays a key role in human metabolism. Iodine, for example, is slightly soluble in water and gives a yellowish-brown solution. Brown solutions are also formed with alcohol.
Iodine is usually used in an alcohol solution (called tincture of iodine) or as Lugol's iodine solution as a pre- and postoperative antiseptic. Some people do not recommend disinfecting minor wounds with iodine because of concern that it may induce scar tissue formation and increase healing time.

Non-metal which is used to sterilize water is :

chemistry metals chemical properties and uses of metals and non-metals introduction to metals physical properties of non-metals

  1. iodine

  2. bromine

  3. chlorine

  4. sulphur

Show answer
Correct Option: C
Explanation:

Chlorine is a non-metal which is used to disinfect water. 


Chlorine can be applied for the deactivation of most microorganisms like bacteria.

Hence the correct option is C.

A person working with phosphorus suffers from a disease in which bones decay. It is known as?

chemistry metals chemical properties and uses of metals and non-metals introduction to metals physical properties of non-metals

  1. Arthritis

  2. Phossy jaw

  3. Rickets

  4. Cancer

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Correct Option: B
Explanation:

A person working with phosphorus suffers from a disease in which bones decay. It is known as phossy jaw.

The oxides of nonmetal which is neutral is :

chemistry metals chemical properties and uses of metals and non-metals introduction to metals physical properties of non-metals

  1. $SO _2$

  2. $NO _2$

  3. $P _2O _3$

  4. $CO$

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Correct Option: D
Explanation:

Neutral oxides are the oxides which show neither basic nor acidic properties when they react with water and they do not form salts when reacted with acids or bases, e.g., carbon monoxide$ (CO)$,nitrous oxide$ (N _2O)$,nitric oxide $(NO),$ etc., are neutral oxides.