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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

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

The atomic number of an element X is 12.
(a) What must an atom of X do to attain the nearest inert gas electron configuration?
(b) Which inert gas is nearest to X?


Which property of 'solder' alloy makes it suitable for welding electrical wires?


What is meant by 22 carat gold? Name the metals which are usually alloyed with gold to make it harder.


What is an alloy? Give two examples of alloys.


Fill in the blank 

_______ is a soft metal. 


A metal which is neither ductile nor malleable is


State two important uses of following metal 

Uses of zinc  


State two important uses of following metal 

Uses of lead     


Take an element from an alkali metal and one from an alkaline earth metal and write an equation  for their action with:

Hydrochloric acid,


Name the following:

The most reactive halogen.


Name the following:

A halogen which is a solid at room temperature.


The metal which is liquid at room temperature is ______.


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.

Generally, metals are solid in nature. Which one of the following metals is found in a liquid state at room temperature?


Name one metal and one non-metal that exist in liquid state at room temperature. Also name two metals having melting point less than 310 K (37°C)


An element forms an oxide A2O3 which is acidic in nature. Identify A as a metal or non-metal.


Metals are usually solids or gases at room temperature.


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


The metals which are found in both free state as well as combined state are ______.


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