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Metals and Non-metals Test - 27

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Metals and Non-metals Test - 27
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Which metal does not react with water?
    Solution
    Metals such as lead, copper, silver and gold do not react with water at all.
  • Question 2
    1 / -0
    Non-metals are:
    Solution
    Non-metals are very brittle and cannot be rolled into wires or pounded into sheets. They break easily when hit by a hammer.
  • Question 3
    1 / -0
    Which metals react with cold water?
    Solution
    The metals which react with cold water are; sodium, calcium and potassium. Magnesium does not react with cold water. Metals like aluminium, iron and zinc do not react either with cold or hot water. Metals such as lead, copper, silver and gold do not react with water at all.
  • Question 4
    1 / -0
    The metal which does not react with dilute $$HCl$$ is
  • Question 5
    1 / -0
    Arrange the following metals in the decreasing order of their chemical reactivity placing the most active first. The metals are Cu, Mg, Fe, Na, Ca, Zn.
    Solution
    The decreasing order of chemical reactivity is given below.
    (most active) Na > Ca > Mg > Zn > Fe > Cu (least active)
  • Question 6
    1 / -0
    Activity series of metals is a series in which metals are arranged according to their:
    Solution

    The activity series of metals is an list of metals ranked in order of their decreasing reactivity. After performing displacement experiments  the following series has been developed.



  • Question 7
    1 / -0
    Which metal is stored in kerosene oil?
    Solution
    Metals such as potassium and sodium react so vigorously that they catch fire if kept in the open. Hence, to protect them and to prevent accidental fires, they are kept immersed in kerosene oil.
  • Question 8
    1 / -0
    The conduction of electricity through a solution involves the movement of_________ particles.
    Solution
    The aqueous solution of ionic compounds contains charged particles and these particles or ions help in the conduction of electricity. Thus, the correct option is $$B$$
  • Question 9
    1 / -0
    Define brittleness.
    Solution
    When a force (e.g. a hammer) is applied on a substance and it breaks easily, it is said to be brittle. Non-metals are generally brittle in nature, i.e. they break when hammered.
  • Question 10
    1 / -0
    Which of the following is not the property of non-metals?
    Solution
    Non-metals are neither ductile nor malleable. They are a bad conductor of heat and electricity. Also, they are non-sonorous and are brittle
    Thus option $$C$$ is a correct answer.
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