Which of the following metals can't be used to make utensils?
Aluminium
Lead
Copper
Silver
Lead has least conductivity among four. Thus, it can't be used to make utensils.
Which of the following metals should be chosen to react with CuSO4 solution to make its color disappear?
Assertion:- An alloy of gold with copper or silver is used to make ornaments.
Reason:- Pure gold is soft due to which it cannot be not used to make ornaments.
State one use each of the following non-metals: Copper, Aluminium, Iron, Silver, Gold, Mercury