Materials: Metals and Non-Metals - Jharkhand Board (JAC) STD 8 Science Questions

Q 1M.C.Q. [I MARKS]1 Mark

Sulphur element is said to be:

A
Ductile
B
Hard
C
Malleable
✓
Brittle

Answer: D.

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Q 2M.C.Q. [I MARKS]1 Mark

Which one of the following four metals would be displaced from the solution of its salt by the other three metals?

A
Zinc
✓
Silver
C
Copper
D
Magnesium

Answer: B.

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Q 3M.C.Q. [I MARKS]1 Mark

The metal which will not produce hydrogen gas on reacting with dilute sulphuric acid is:

A
Sodium
✓
Silver
C
Iron
D
Zinc

Answer: B.

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Q 4M.C.Q. [I MARKS]1 Mark

You are given a solution of iron sulphate. Which of the following do you think cannot displace iron from iron sulphate?

A
Magnesium
B
Calcium
✓
Copper
D
Zinc

Answer: C.

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Q 5M.C.Q. [I MARKS]1 Mark

When a vessel is exposed to moist air for a long time, then a green coating is formed on its surface. The vessel must be made of:

A
Zinc
B
Magnesium
C
Iron
✓
Copper

Answer: D.

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Q 6Fill in the blanks: [1 M]1 Mark

Fill in the following blanks with suitable words:
Iron is more $............$ than copper.Hoo abhi to dalwaya tha tmne

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Q 7Fill in the blanks: [1 M]1 Mark

Fill in the following blanks with suitable words:
Metals react with acids to produce $............$ gas.

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Q 8Fill in the blanks: [1 M]1 Mark

Fill in the following blanks with suitable words:A non-metal is used to make an antiseptic solution called tincture $............$

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Q 9Fill in the blanks: [1 M]1 Mark

Fill in the following blanks with suitable words: Phosphorous is a very $............$ Non$-$metal.

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Q 10Fill in the blanks: [1 M]1 Mark

Fill in the following blanks with suitable words: Sulphur forms $............$ oxide whereas magnesium forms $............$ oxide.

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Q 11true or false. [1 M]1 Mark

State whether the following statements are true or false: Sodium is a very reactive metal.

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Q 12true or false. [1 M]1 Mark

State whether the following statements are true or false:All metals exist in solid form at room temperature.

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Q 13true or false. [1 M]1 Mark

State whether the following statements are true or false: Non-metals react with dilute acids to produce hydrogen gas.

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Q 14true or false. [1 M]1 Mark

State whether the following statements are true or false: Copper displaces zinc from zinc sulphate solution.

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Q 15true or false. [1 M]1 Mark

State whether the following statements are true or false: Non-metals react with water to form a gas which burns with a ‘pop’ sound.

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Q 16questions in short. [3 marks ]3 Marks

Can copper displace iron from iron sulphate solution? Give reason for your answer.

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Q 17questions in short. [3 marks ]3 Marks

State any two physical properties for believing that aluminium is a metal.

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Q 18questions in short. [3 marks ]3 Marks

How do metals react with dilute acids? Explain with the help of an example.

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Q 19questions in short. [3 marks ]3 Marks

There are two boxes, one made of metal and the other made of wood, which are similar in appearance. How will you find out which box is made of metal?

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Q 20questions in short. [3 marks ]3 Marks

Give one use each of the following metals:
$a.$ Iron
$b.$ Copper
$c.$ Aluminium
$d.$ Zinc
$e.$ Mercury

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Q 21questions in details [4 marks ]4 Marks

Classify the following elements into metals, non-metals and metalloids:
Copper, Sulphur, Aluminium, Oxygen, Silicon, Nitrogen, Germanium, Mercury, Chlorine, Sodium.

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Q 22questions in details [4 marks ]4 Marks

What are non-metals? Name five non-metals.

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Q 23questions in details [4 marks ]4 Marks

What happens when sulphur dioxide is dissolved in water? Write a word equation for the reaction which takes place.

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Q 24questions in details [4 marks ]4 Marks

State five uses of metals and five uses of non$-$metals.

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Q 25questions in details [4 marks ]4 Marks

Compare the Chemical Properties of Metals and Non-metals in tabular form.

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Q 26questions in on sentence. [1 M]1 Mark

Which non-metal is used in water purification process to make drinking water supply germ-free?

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Q 27questions in on sentence. [1 M]1 Mark

Name two non-metals which are used in fireworks (crackers, etc.)

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Q 28questions in on sentence. [1 M]1 Mark

An element forms an oxide which is acidic in nature. Is the element a metal or a non-metal?

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Q 29questions in on sentence. [1 M]1 Mark

Name the gas evolved when a metal reacts with water.

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Q 30questions in on sentence. [1 M]1 Mark

Name two metals which are used for making cooking utensils and water boilers for factories.

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Materials: Metals and Non-Metals question types

Materials: Metals and Non-Metals questions

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Materials: Metals and Non-Metals Science - Materials: Metals and Non-Metals

Materials: Metals and Non-Metals question types

Materials: Metals and Non-Metals questions

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