Which of the following is a non-metal?
(A) Cobalt
(B) Hydrogen
(C) iron
(D) gold
Which gas is deposited at the anode on electrolysis of alumina?
(A) Hydrogen gas
(B) Nitrogen gas
(C) carbon dioxide gas
(D) Oxygen gas
Which metal does not react with oxygen even at high temperature?
(A) Iron
(B) gold
(C) Potassium
(D) Aluminum
Thin wires can be drawn from a piece of metal. Which property of the metal is it responsible for?
(A) ductility
(B) hardness
(C) malleability
(D) conductivity
The property of metal by which it can be drawn into wires is called ductility.
Food is cooked in a metal utensil because it is the source of heat.
(A) is a good conductor
(B) is a semiconductor
(C) is a bad conductor
(D) is both a conductor and a good conductor
Melting and boiling points of ionic compounds -
(A) contains the following
(B) are high
(C) are normal
(D) All the statements are true
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