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CodeVID-M7-WS
Metals and Non-metals — Practice Worksheet
Name: ____________________
Roll No.: __________
Date: ____________
General Instructions
- All questions are compulsory.
- Choose the correct option (A, B, C or D) for each question.
- The answer key is at the end — try the paper first!
Section A — Multiple Choice (1 mark each)
25 × 1 = 25 marks
1.
The property of a metal that allows it to be drawn into thin wires is called:
- A.Malleability
- B.Ductility
- C.Sonorousness
- D.Lustre
2.
Most non-metals are ______ of heat and electricity.
- A.Good conductors
- B.Poor conductors
- C.Superconductors
- D.Sonorous carriers
3.
The only metal that is liquid at room temperature is:
- A.Iron
- B.Mercury
- C.Copper
- D.Sodium
4.
The ringing sound produced by metals when struck is due to the property called:
- A.Ductility
- B.Lustre
- C.Sonorousness
- D.Malleability
5.
Which non-metal is a good conductor of electricity?
- A.Sulphur
- B.Graphite
- C.Oxygen
- D.Phosphorus
6.
When a metal reacts with oxygen, it forms a metal oxide that is generally:
- A.Acidic
- B.Basic
- C.Neutral
- D.A gas
7.
Very reactive metals like sodium and potassium are stored under:
- A.Water
- B.Kerosene oil
- C.Dilute acid
- D.Open air
8.
Most metals react with dilute acids to release the gas:
- A.Oxygen
- B.Carbon dioxide
- C.Hydrogen
- D.Nitrogen
9.
Hydrogen gas is identified by the sound it makes with a burning splint, which is a:
- A.Hiss
- B.Pop
- C.Bang only
- D.Whistle
10.
The arrangement of metals in order of their reactivity is called the:
- A.Periodic table
- B.Reactivity series
- C.Litmus scale
- D.pH scale
11.
Oxides of non-metals are generally:
- A.Basic
- B.Acidic
- C.Metallic
- D.Neutral always
12.
Compared with metals, non-metals usually react with dilute acids:
- A.Violently
- B.Very little or not at all
- C.To release oxygen
- D.To form bases
13.
Elements with properties between metals and non-metals are called:
- A.Alloys
- B.Metalloids
- C.Salts
- D.Halogens
14.
Which of these is a metalloid widely used in electronics?
- A.Iron
- B.Silicon
- C.Sulphur
- D.Copper
15.
In reactions, non-metals tend to ______ electrons.
- A.Lose
- B.Gain
- C.Destroy
- D.Ignore
16.
An alloy is a homogeneous mixture of two or more:
- A.Non-metals only
- B.Metals (or a metal with a non-metal)
- C.Gases
- D.Acids
17.
Steel is an alloy of iron and:
- A.Zinc
- B.Carbon
- C.Copper
- D.Tin
18.
Brass is an alloy of copper and:
- A.Tin
- B.Carbon
- C.Zinc
- D.Nickel
19.
Which alloy is highly resistant to rusting and used for cutlery?
- A.Bronze
- B.Brass
- C.Stainless steel
- D.Pure iron
20.
Compared with pure metals, alloys are usually:
- A.Softer and weaker
- B.Harder and stronger
- C.Less durable
- D.More easily rusted
21.
The gradual eating away of a metal by air, moisture, and chemicals is called:
- A.Crystallisation
- B.Corrosion
- C.Galvanisation
- D.Neutralisation
22.
The black coating that forms on silver over time is due to:
- A.Rusting
- B.Tarnishing
- C.Galvanising
- D.Plating
23.
Coating iron with a layer of zinc to prevent corrosion is called:
- A.Electroplating
- B.Galvanisation
- C.Painting
- D.Alloying
24.
Depositing a thin layer of a less reactive metal using electricity is called:
- A.Galvanisation
- B.Electroplating
- C.Tarnishing
- D.Crystallisation
25.
Which of the following resists corrosion because of added chromium and nickel?
- A.Pure iron
- B.Stainless steel
- C.Pure copper
- D.Pure silver
Answer Key
Section A — Multiple Choice (1 mark each)
- (B) Ductility
- (B) Poor conductors
- (B) Mercury
- (C) Sonorousness
- (B) Graphite
- (B) Basic
- (B) Kerosene oil
- (C) Hydrogen
- (B) Pop
- (B) Reactivity series
- (B) Acidic
- (B) Very little or not at all
- (B) Metalloids
- (B) Silicon
- (B) Gain
- (B) Metals (or a metal with a non-metal)
- (B) Carbon
- (C) Zinc
- (C) Stainless steel
- (B) Harder and stronger
- (B) Corrosion
- (B) Tarnishing
- (B) Galvanisation
- (B) Electroplating
- (B) Stainless steel
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