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Sorting Materials into Groups

Description: Sorting Materials Into Groups, Properties of Metals
Number of Questions: 15
Created by:
Tags: Science Class 6 Objects Around Us Sorting Materials into Groups Properties of Materials Comparison of Closure Properties of Various Types of Numbers Finding Rational Numbers Lying Between Two Rational Numbers Operation on Rational Numbers Meaning of Rational Numbers
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Which of the following is not a man-made material?

  1. Plastic

  2. Glass

  3. Jute

  4. Steel

  5. Nylon

Show answer
Correct Option: C
Explanation:

This is the correct option as jute is a natural material, which occurs in a plant.

Which of the following is an immiscible liquid?

  1. Petrol

  2. Milk

  3. Alcohol

  4. Lemon juice

  5. Vinegar

Show answer
Correct Option: A
Explanation:

This is the correct option. Petrol is an immiscible liquid. It is not soluble in water.

__________ is the hardest substance.

  1. Glass

  2. Diamond

  3. Iron

  4. Talcum

  5. Wood

Show answer
Correct Option: B
Explanation:

This is the correct option. Diamond is the hardest, naturally occurring substance.

Which of the following is an insoluble substance?

  1. Common salt

  2. Silver

  3. Glucose

  4. Ethanol

  5. Washing soda

Show answer
Correct Option: B
Explanation:

This is the correct option. Silver is insoluble in water, i.e. it does not dissolve in water.

Which of the following substances is lighter than water?

  1. Ice

  2. Pen

  3. Key

  4. Stone

  5. Coin

Show answer
Correct Option: A
Explanation:

This is the correct option. Ice is lighter than water. It will float on the surface of water.

The substances which dissolve in water are called soluble substances. Which of the following is a soluble substance?

  1. Sugar

  2. Sand

  3. Chalk powder

  4. Coconut oil

  5. Grease

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Correct Option: A
Explanation:

This is the correct option. Sugar is a soluble substance. It completely dissolves in water.

Which of the following statements are true: a. Metals loose their luster gradually when exposed to air and moisture for long time. b. Stone is a transparent material. c. Compressed natural gas is a domestic fuel used in kitchens for cooking purposes.

  1. only b

  2. b and c

  3. a and b

  4. a and c

  5. only a

Show answer
Correct Option: E
Explanation:

This is the correct option. Metals react with air and moisture chemically to form their oxides. When the surface of metals are polished, the oxides fall and metals regain their luster.

Which of the following is not an opaque material?

  1. Wood

  2. Iron

  3. Frosted glass

  4. Stone

  5. Aluminium

Show answer
Correct Option: C
Explanation:

This is the correct option. Frosted glass is a translucent material.

_____________ is called the universal solvent.

  1. Petrol

  2. Water

  3. Honey

  4. Diesel

  5. Mercury

Show answer
Correct Option: B
Explanation:

This is the correct option. Water can eventually dissolve everything, which is kept in it. Thus, water is called a universal solvent.

Which of the following is not a transparent material?

  1. Glass

  2. Diamond

  3. Clear water

  4. Hydrogen

  5. Butter paper

Show answer
Correct Option: E
Explanation:

This is the correct option. Butter paper is not a transparent material. It is a translucent material.

Which of the following gases is converted by water plants to be used as their food?

  1. Hydrogen

  2. Oxygen

  3. Carbon dioxide

  4. Nitrogen

  5. Carbon monoxide

Show answer
Correct Option: C
Explanation:

This is the correct option. Carbon dioxide is converted into food by water plants with the help of chlorophyll and sunlight.

Which of the following statements is/are false? a. Talcum is prepared from soap stone and is the softest substance. b. Next to diamond, glass is the hardest substance. c. Ether is miscible in water.

  1. Only a

  2. Only a and b

  3. Only c

  4. Only b and c

  5. Only b

Show answer
Correct Option: C
Explanation:

This is the correct option as the statement is false. Ether is not miscible in water. It is miscible in coconut oil.

Which of the following is not a naturally occurring material?

  1. Wood

  2. Ceramic

  3. Cotton

  4. Silk

  5. Sand

Show answer
Correct Option: B
Explanation:

This is the correct option as ceramics are not a naturally occurring material.

Which of the following materials do not have a luster?

  1. Gold

  2. Mercury

  3. Wood

  4. Copper

  5. Graphite

Show answer
Correct Option: C
Explanation:

This is the correct option. Wood is the material which is non-lustrous in nature. 

Which of the following is/are the properties of materials? a. Appearance b. Soluble or insoluble c. Hardness

  1. only c

  2. only a and b

  3. only a

  4. a, b and c

  5. only b and c

Show answer
Correct Option: D
Explanation:

This is the correct option. Appearance, hardness and soluble or insoluble are all the properties of a material. 

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