Boojho has learnt that non-metals on beating with a hammer are generally broken into pieces.Which of the following is non-metal?

1

(a)

Iron nail

(b)

Aluminium wire

(c)

Copper plate

(d)

Piece of coal

Materials which can be drawn into wires are called ductile. Which of the following is not a ductile material?

1

(a)

Silver

(b)

Copper

(c)

Sulphur

(d)

Aluminium

Which of the following can be beaten into thin sheets?  

1

(a)

Zinc

(b)

Phosphorus

(c)

Sulphur

(d)

Oxygen

Which is not a property of non-metal?

1

(a)

Ductility

(b)

Solid state

(c)

Can be conductors

(d)

All.

Metals can be cut with a knife:

1

(a)

Sodium and iron

(b)

Potassium and copper

(c)

Copper and iron

(d)

Sodium and potassium.

..................litmus paper turns...............when it is dipped in a basic solution.

1

(a)

Red,blue

A solution of...............in alcohol has antiseptic properties.

1

(a)

iodine

Sodium and potassium are kept in...............

1

(a)

kerosene

Copper is.................reactive than zinc.

1

(a)

less

.................gas is liberated when metals react with acids.

1

(a)

Hydrogen

A more reactive __________ can replace a _________ metal.

1

(a)

Metal, less reactive

_______ are lustrous whereas _______ have no luster.

1

(a)

Metals, non-metals

On burning, metals react with oxygen to produce _______ that are _______ in nature.

1

(a)

Metallic oxides, basic

______ catches fire if exposed to air.

1

(a)

Phosphorus,

________ are used to wrap food items.

1

(a)

Aluminium foils

Generally, non-metals react with acids.

1

(a) True

(b) False

Copper displaces zinc from zinc sulphate solution

1

(a) True

(b) False

When metals react with acid, they form oxygen gas

1

(a) True

(b) False

Metals show displacement reaction whereas Nonmetals do not show any displacement reaction

1

(a) False

(b) True

The Non-metallic oxides turns red litmus into blue.

1

(a) True

(b) False

Why are Sodium and potassium stored in kerosene?

1

(a)

It is because they react vigorously with oxygen and water

Why copper cannot displace zinc from its salt solution?

1

(a)

It is because zinc is more reactive than copper.

Name two soft metals which can be cut with a knife

1

(a)

Which metal is stored in kerosene?

1

(a)

Name a non-metal which is kept in water

1

(a)

Write the different uses of metals.

2

(a)

Can you store lemon pickle in an aluminium utensil? Explain

2

(a)

Saloni took a piece of burning charcoal and collected the gas evolved in a test tube.
(a) How will she find the nature of the gas?
(b) Write down word equations of all the reactions taking place in this process.

2

(a)

The doctor reported iron deficiency in the body. Where is iron present in our body?

2

(a)

What do you understand by displacement reactions? What happens when copper sulphate reacts with zinc? Explain this reaction also.

2

(a)

Discuss all the physical properties of metals

3.5

(a)

Iron is more reactive than copper. Can you write an activity to show this?

3.5

(a)

Discuss all the chemical properties of (a) Metals and (b) Non-metals.

3

(a)