Reaction of Metals 2

Which one of the following metals reacts most vigorously (reactive) with cold water?

• copper

• iron

• magnesium

• sodium

Which one of the following metals could produce zinc metal, if heated with zinc oxide?

• aluminum

• copper

• iron

• lead

which two of these statements are correct?

(1) most metals are good conductor of heat

(2) most metals are poor conductor of heat

(3) most metals are good conductor of electricity

(4) most metals are poor conductor of electricity

• 1 and 3

• 2 and 3

• 1 and 4

• 2 and 4

salt produced when zinc reacts with sulphuric acid is ....

• zinc carbonate

• zinc sulphate

• zinc chloride

• zinc nitrate

which two products are formed when magnesium reacts with hydrochloric acid?

• magnesium chloride and hydrogen

• magnesium chloride and water

• magnesium oxide and hydrogen

• magnesium oxide and water

Which of the following is arranged according increasing reactivity?

• Mg > Li > Na > K

• Na > Li > Mg > K

• Mg > Na > Li > K

• K > Mg > Na > Li

Which of the following does not react with water?

• calcium

• lead

• caesium

• barium

When a metal reacts with oxygen gas, the product is ...

• metal hydroxide

• metal oxide and oxygen

• metal oxide

• metal hydroxide and hydrogen gas

Which metal is more reactive than calcium?

• magnesium

• silver

• potassium

• aluminum

If the metal is more reactive than the metal in the compound it completes with the less reactive metal. Therefore, it can concluded that ...

• The less reactive metal repel the more reactive metal from its compound

• The less reactive metal pushes out or displaces the more reactive metal from its compound

• The more reactive metal bonded with the less reactive metal from its compound

• The more reactive metal pushes out or displaces the less reactive metal from its compound