SSC MTS EXAM

SSC

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Elements which are shiny, conduct electricity and heat are called
A
metal
B
nonmetal
C
metalloid
D
nonexistent
Explanation: 

Detailed explanation-1: -Metal: Metal is a category of electropositive elements that usually have a shiny surface, are generally good conductors of heat and electricity, and can be melted or fused, hammered into thin sheets, or drawn into wires.

Detailed explanation-2: -Pure silver and copper provide the highest thermal conductivity, with aluminum less so. Stainless steels provide low thermal conductivity. Some materials, including copper, will readily conduct both heat and electricity.

Detailed explanation-3: -All metals have a shiny appearance (at least when freshly polished); are good conductors of heat and electricity; form alloys with other metals; and have at least one basic oxide.

There is 1 question to complete.