SSC MTS EXAM

SSC

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which element is a poor conductor of electricity, unmalleable and a non-metal?
A
Calcium (Ca)
B
Iron (Fe)
C
Aluminum (Al)
D
Chlorine (Cl)
Explanation: 

Detailed explanation-1: -Among all the options, only oxygen is non-metal. Non-metals do not have enough free electrons for the flow of electricity. And hence are bad conductors of electricity.

Detailed explanation-2: -Phosphorus, sulfur, chlorine and argon They have no free electrons that can move around and carry charge from place to place. The atoms in molecules of phosphorus, sulfur or chlorine are attracted to each other by covalent bonds.

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