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Test: Sorting Materials into Groups - UPSC MCQ


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10 Questions MCQ Test - Test: Sorting Materials into Groups

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Test: Sorting Materials into Groups - Question 1

Select odd from the following

Detailed Solution for Test: Sorting Materials into Groups - Question 1

To identify the odd item from the list, consider the function or category of each item:

  1. Spade: A tool used for digging.
  2. Eraser: An object used for removing pencil marks.
  3. Tawa: A flat cooking pan used in Indian cooking.
  4. Pressure cooker: A cooking appliance used for cooking food under pressure.

Eraser is the odd one out because it is the only item that is not related to cooking or tools used in cooking or gardening. The other items are related to either cooking (Tawa, Pressure cooker) or tools used for specific tasks (Spade).

Correct Answer:

2. Eraser

Test: Sorting Materials into Groups - Question 2

Select the translucent materials from the following?

Detailed Solution for Test: Sorting Materials into Groups - Question 2

Explanation for the correct option:

As muslin cloth partially allows light to pass through it, hence this is a translucent material. So Muslin cloth.

Hence, option (C) is correct.

Explanation for incorrect options

Option A: The Glass tumbler is a clear object that gives a clear picture of objects on another side, hence is a transparent object.

Option B: The mirror reflects all rays falling on it, we can see our own image but we can't see objects that are behind the mirror, hence mirror is an opaque object.

Option D: Aluminium foil does not allow light rays to pass through, hence this is an opaque object.

Hence, options (A), (B), and (D) are incorrect.

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Test: Sorting Materials into Groups - Question 3

Which one will show a metallic lustre?

Detailed Solution for Test: Sorting Materials into Groups - Question 3

Metals when cut, their freshly cut surface has shining.

Test: Sorting Materials into Groups - Question 4

A substance which can be beaten into thin sheet, is called

Detailed Solution for Test: Sorting Materials into Groups - Question 4

The property of metals by which they can be beaten into thin sheets is called malleability. Most metals are malleable. Gold and silver are the best malleable metals and can be hammered into very fine sheets or foils. 

Test: Sorting Materials into Groups - Question 5

Choose the opaque materials from the following

Detailed Solution for Test: Sorting Materials into Groups - Question 5

The wooden door is an opaque object which does not allow any light to pass through it.

Test: Sorting Materials into Groups - Question 6

What property of materials do we observe by looking through a sheet of paper with and without oil?

Detailed Solution for Test: Sorting Materials into Groups - Question 6
When we look through a sheet of paper with and without oil, we are observing transparency. Transparency helps us understand if we can see through a material clearly or if it blocks our view. It's like looking through a clean window where you can see outside easily. Understanding transparency helps us know how light passes through different materials.
  • When we look through a sheet of paper with and without oil, we are observing transparency.
  • Transparency helps us understand if we can see through a material clearly or if it blocks our view.
  • It's like looking through a clean window where you can see outside easily.
  • Understanding transparency helps us know how light passes through different materials.
Test: Sorting Materials into Groups - Question 7

The state of matter which has a definite volume but no definite shape

Detailed Solution for Test: Sorting Materials into Groups - Question 7

If the particles of a substance have enough energy to partially overcome inter-molecular interactions, then the particles can move about each other while remaining in contact. This describes the liquid state. In a liquid, the particles are still in close contact, so liquids have a definite volume. However, because the particles can move about each other rather freely, a liquid has no definite shape and takes a shape dictated by its container.

Test: Sorting Materials into Groups - Question 8

Why is grouping materials important?

Detailed Solution for Test: Sorting Materials into Groups - Question 8
  • Grouping materials is important because it helps us find and study their properties easily.
  • When we group materials based on their similarities and differences, we can understand how they look, feel, and behave.
  • For example, grouping all the soft materials together can help us learn about materials that are soft to touch, like cotton or sponge.
  • So, by grouping materials, we can learn a lot about them and how they can be used to make different things.
Test: Sorting Materials into Groups - Question 9

Which among the following materials are not lustrous

Detailed Solution for Test: Sorting Materials into Groups - Question 9

Those substances that have shining surface are called as lustrous substance. Diamond, gold and silver are lustrous

Test: Sorting Materials into Groups - Question 10

Which type of material is used to make wind screen of a car?

Detailed Solution for Test: Sorting Materials into Groups - Question 10

Transparent material is used to make wind screen of a car as it is must to see through them.

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