Materials: Metals And Non Metals Mock Tests

28 questions available

Materials: Metals And Non Metals Mock Test 1

Questions: 28

Sample Questions

Class 8 Science

Which of the following is a displacement reaction?

A Zn + CuSO₄ → ZnSO₄ + Cu

B 2Na + Cl₂ → 2NaCl

C CaCO₃ → CaO + CO₂

D CH₄ + 2O₂ → CO₂ + 2H₂O

Class 8 Science

When iron nails are placed in copper sulphate solution for a few minutes, the blue colour of the solution changes to:

A Green

B Red

C Yellow

D Colourless

Class 8 Science

What is the purpose of applying a zinc coating on iron?

A To increase weight

B To prevent rusting

C To make it shiny

D To improve conductivity

Class 8 Science

Which metal is the most abundant in the Earth's crust?

A Iron

B Copper

C Aluminium

D Gold

Class 8 Science

Which chemical formula represents common salt?

A NaCl

B KCl

C CaCl₂

D MgCl₂

Class 8 Science

Which of the following is a property of non-metals?

A Malleable

B Ductile

C Brittle

D Good conductor of heat

Class 8 Science

Which metal is liquid at room temperature?

A Sodium

B Iron

C Mercury

D Magnesium

Class 8 Science

Which non-metal is stored in kerosene to prevent dangerous reactions?

A Sulphur

B Phosphorus

C Carbon

D Iodine

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