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Team 2
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Teams
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thief
Give points!
5
10
15
20
25
×
rocket
Go to first place!
Okay!
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shark
Other team loses 15 points!
Okay!
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lifesaver
Give 25 points!
Oops!
20
×
Materials having qualities of both metals and non-metals are (a) alloys (b) metalloids (c) noble metals (d) none of these
metalloids
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25
×
Suppose copper was high up in the reactivity series. Would it still have been such a useful metal? Give reasons.
No, it very react easily so we cannot use it properly
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25
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Silver is the best conductor of electricity. Can you say why electric wires are not made of silver?
IT IS VERY EXPENSIVE
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20
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Arrange the following metals in the sequence of more reactive to less reactive.Iron, Zinc, Magnesium, Copper
Magnesium>Zinc>Iron>Copper.
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15
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Which one of the following alloys is light and strong? (a) brass (b) stainless steel (c) duralium (d) bronze
C
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25
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Gold normally occurs in nature (a) in a free state. (b) as carbonate ore. (c) as sulphate ore. (d) as sulphide ore.
FREE STATE
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20
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Metal oxides are (a) neutral (b) basic (c) acidic (d) all of these
b
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25
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The process of coating iron sheets with a thin layer of zinc is called A) Hibernation B) Electroplating C) Galvanisation D) None
C
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20
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Which non-metal is used in making glass? (a) Graphite (b) Sulphur (c) Silica (d) None of these
c
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monster
Reset all scores!
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star
Double points!
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rocket
Go to first place!
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thief
Give points!
5
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15
20
25
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thief
Give points!
5
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25
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gold
Win 50 points!
Okay!
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gift
Win 25 points!
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thief
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5
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25
20
×
The metal which is liquid at room temperature is (a) sodium (b) bromine (c) calcium (d) mercury
mercury
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20
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Which Of The Following Non-Metals Reacts And Catches Fire On Exposure To Air? [A]. Phosphorus [B]. Nitrogen [C]. Sulphur [D]. Hydrogen
A
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20
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All metals are solids except (a) Sodium(b) Calcium(c) Mercury(d) Hydrogen.
c
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20
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Which substance is used for making pencil lead? (a) Sulphur (b) Silicon (c) Graphite (d) Aluminium
c
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