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Solution


Q.

Which of the following properties are not shown in metals
1 Electric conductivity  
2 Sonorous in nature  
3 Dullness  
4 Ductility  

Ans.

(3)

Metals are good conductors of electricity. Metals are sonorous in nature which means on striking them they make a ringing sound.
Metals are lustrous which means they have shiny appearance. Metals are ductile which means they can be drawn into long thin wires. Hence, the property not shown by metals is dullness.