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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: Silver - Chemistry

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प्रश्न

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

Silver

एक पंक्ति में उत्तर
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उत्तर

Silver:

  1. For making Jewellery.
  2. As is conducts more electricity and heat than any other metal which makes it a prime source of use in electronics.
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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.

Generally, non-metals react with acids. ( )


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

Copper displaces zinc from zinc sulphate solution. ( )


What happens when Iron nails are placed in copper sulphate solution?

Write word equations of the reactions involved.


Give two uses of Germanium  


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

Silver is used to make electric cables.


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

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


Write ‘True’ or ‘False’ in front of following statement.  

Brass is an alloy of copper and zinc and has lustrous yellow colour. 


Write ‘True’ or ‘False’ in front of following statement. 

Magnesium is used in making light weight alloys of aluminium. 


State two important uses of following metal: 

Uses of silver  


State the position of the following in the periodic table:

Alkali metals


Which is the non-ionic compound in the compounds given below.
AgNO3 + Nacl → AgCl + NaNO3


Write scientific reason.

Meena’s mother uses lemon or tamarind for cleaning copper vessels turned greenish.


The metal which is liquid at room temperature is ______.


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


Assertion: Mercury is solid in room temperature.

Reason: Mercury is a non-metal.


Why are bells made of metals?


Which of the following metals are obtained by electrolysis of their chlorides in molten state?

  1. Na
  2. Ca
  3. Fe
  4. Cu

Metals are usually solids or gases at room temperature.


A doctor prescribed a tablet to a patient suffering from iron deficiency. The tablet does not look like iron. Explain.


Match the following

i. Silica a. Caustic potash
ii. Potassium hydroxide b. Sand
iii. Sodium hydroxide c. Calamine
iv. Zinc carbonate d. Caustic soda

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