Q4 of 11 Page 53

Mark 'T' if the statement is true and 'F' if it is false.

(a) Generally, non-metals react with acids. ( )


(b) Sodium is a very reactive metal. ( )


(c) Copper displaces zinc from zinc sulphate solution. ( )


(d) Coal can be drawn into wires. ( )

(a) False. Metals also react with acids.

(b) True. Because it is an alkali metal.


(c) False. Because zinc is more reactive than copper.


(d) False. Because Coal is not a metal.


More from this chapter

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2

Which of the following statements is correct?

(a) All metals are ductile.


(b) All non-metals are ductile.


(c) Generally, metals are ductile.


(d) Some non-metals are ductile.

 3

Fill in the blanks:

(a) Phosphorus is a very_______ non-metal.


(b) Metals are _______ conductors of heat and ________.


(c) Iron is _______ reactive than copper.


(d) Metals react with acids to produce ________ gas.

 5

Some properties are listed in the following Table. Distinguish between metals and non-metals on the basis of these properties.

 6

Give reasons for the following.

(a) Aluminium foils are used to wrap food items.


(b) Immersion rods for heating liquids are made up of metallic substances.


(c) Copper cannot displace zinc from its salt solution.


(d) Sodium and potassium are stored in kerosene.