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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

With Reference to the Following Metals State Their Use in Daily Life Metal: Magnesium - Chemistry

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प्रश्न

With reference to the following metals state their use in daily life metal:

Magnesium

एक पंक्ति में उत्तर

उत्तर

Magnesium:

  1. It is used in fire works as it bums with a dazzling light.
  2. Photography: Magnesium produces a bright flash. It is used in strip form.
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अध्याय 6: Metals and Non-metals - Exercise

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संबंधित प्रश्न

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

Sodium is a very reactive metal. ( )


State one use of Copper.


State one use of  Iron.


 For the reduction of metal oxide, suggest a reducing agent other than carbon.


Which of the following alloys contains mercury as one of the constituents?
(a) stainless steel
(b) solder
(c) duralumin
(d) zinc amalgam


Write ‘true’ or ‘false’ for the following statement. 

Iodine acts as an antiseptic in the form of a tincture of iodine. 


State two important uses of following metal 

Uses of magnesium  


Write name.

The nonmetal having electrical conductivity.


Write the name.

Two highly reactive metals-


Halogen reacts with acid.


Complete the following flowchart.


Compare the properties of metals and nonmetals. Give three examples for each.


Higher Order Thinking Skills.

Aakash noticed that the metal latch on gate was difficult to open during hot sunny days. However, it was not difficult to open the same latch at night. Aakash observed that the latch and the gate are exposed to the sun during day time.

  1. Formulate a hypothesis based on the information provided.
  2. Briefly state how you would test the hypothesis.

Can you store pickle in an aluminium utensil? Give reason.


The most abundant metal in the earth’s crust is ____________.


Which of the following property is generally not shown by metals?


Which of the following is not a metal?


Name two major non-metals which are present in fertilisers and enhance the growth of plants.


Metals and non–metals are used for making ______, ______ and ______.


X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:

______ is the reducing agent.


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