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Metals and Non-metals (Class X)

Metals and Non-Metals Class - 10

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which property of metals decides how much sound will be produced when a metal is struck?

  1. Electrical conductivity
  2. Ductility
  3. Sonority
  4. Density
Question 2 Multiple Choice (Single Answer)

All of the following compounds are non-ionic, except

  1. calcium chloride
  2. sodium chloride
  3. potassium chloride
  4. water
Question 3 Multiple Choice (Single Answer)

Electrical wires are usually made from copper. Which properties of copper make it a suitable choice?

i. Malleability
ii. High electrical conductivity
iii. Sonority
iv. Ductility
v. Metallic lustre

  1. i, ii and iii
  2. ii, iv and v
  3. i, ii and iv
  4. i, iii and iv
Question 4 Multiple Choice (Single Answer)

Which non-metal is stored in water at room temperature due its high reactivity?

  1. Chlorine
  2. Phosphorus
  3. Carbon
  4. Sulphur
Question 5 Multiple Choice (Single Answer)

Select the material in which non-polar compounds will be soluble.

  1. Ethanol
  2. Water
  3. Butanol
  4. Benzene
Question 6 Multiple Choice (Single Answer)

Why does copper turn green after some time when left in open?

  1. Due to oxidation of copper
  2. Due to reduction of copper
  3. Due to displacement reaction
  4. Due to rusting
Question 7 Multiple Choice (Single Answer)

Bronze is made by mixing _______ and _______ to manufacture coins, turbines, blades, etc.

  1. 82% copper, 18% tin
  2. 88% copper, 12% tin
  3. 88% copper, 12% iron
  4. 82% copper, 18% iron
Question 8 Multiple Choice (Single Answer)

Which of the following metal and alloy pairs is not a correct combination?

i. Steel and Iron
ii. Bronze and Tin
iii. Brass and Copper

  1. i and ii
  2. ii and iii
  3. i and iii
  4. None of these
Question 9 Multiple Choice (Single Answer)

Most of the metals are considered to be very hard, but which of the following is a soft metal which can be easily cut into pieces?

  1. Sodium
  2. Aluminium
  3. Copper
  4. Mercury
Question 10 Multiple Choice (Single Answer)

What happens when copper chloride is electrolysed?

  1. Copper chloride is broken down to form copper.
  2. Chlorine gas is formed.
  3. It turns black in colour.
  4. Both 1 and 2
Question 11 Multiple Choice (Single Answer)

Which of the following lies in between magnesium and lead in the reactivity series?

  1. Sodium
  2. Gold
  3. Calcium
  4. Zinc
Question 12 Multiple Choice (Single Answer)

Which among the following metals is a bad conductor of heat?

  1. Iron
  2. Mercury
  3. Silver
  4. Zinc
Question 13 Multiple Choice (Single Answer)

A silvery white, light metal reacts with water to give hydrogen gas and burns with a dazzling white flame. Which metal is it?

  1. Magnesium
  2. Calcium
  3. Sodium
  4. Aluminium
Question 14 Multiple Choice (Single Answer)

What of the following properties belong(s) to sodium metal?

  1. It is a soft metal and can be cut with a knife.
  2. It reacts quickly with water and air.
  3. It has a low melting point.
  4. All of the above
Question 15 Multiple Choice (Single Answer)

Amphoteric oxides are those which react with

  1. acids only
  2. bases only
  3. neither bases nor acids
  4. both bases and acids
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