Science : Ch 03 – Metals and Non-metals

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Science : Ch 03 – Metals and Non-metals

This test is designed based on NCERT Syllabus for Class 10 Topics : Metals and Non-metals

  • Each time random 15 questions will be displaced
  • So retake the quiz till you have mastered all the questions

1 / 15

Which of the subsequent quality is generally not shown by metals?

2 / 15

The solution of one of the following compounds will not conduct electricity. This compounds is:

3 / 15

The composition of aqua-regia is:

4 / 15

Non-metals are not lustrous. Which of the following non-metals is lustrous?

5 / 15

Which among the following Declaration is incorrect for magnesium metal?

6 / 15

What occurs when calcium is treated with water?

  1. It does not react with water.

  2. It reacts violently with water. I

  3. t reacts less violently with water.

  4. Bubbles of hydrogen gas formed stick to the surface of calcium.

7 / 15

Hydrogen gas is not evolved when a metal reacts with nitric acid because

8 / 15

When calcium metal is added to water, the gas evolved does not catch fire but the same gas evolved on adding potassium metal to water catches fire.

9 / 15

Why do ionic compounds conduct electricity in molten state? Because

10 / 15

The Lustrous non-metal

11 / 15

A Metal that exists in liquid state at room temperature

12 / 15

Metal that is best conductor of electricity

13 / 15

Give the formula of the stable binary compounds that would be formed by the combination of following pair of elements: Li and O2

14 / 15

Name one metal that exist in liquid state at room temperature.

15 / 15

When a metal X is treated with cold water, it gives a basic salt Y with molecular formula XOH (molecular mass = 40) and liberates a gas Z which easily catches fre. Identify X, Y and Z.

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