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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

Name a Metal That Can Be Cut with Knife - Chemistry

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प्रश्न

 Name a metal that can be cut with knife   

एक शब्द/वाक्यांश उत्तर

उत्तर

 Sodium

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अध्याय 6: Metals and Non-metals - Exercise

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सेलिना Concise Chemistry [English] Class 7 ICSE
अध्याय 6 Metals and Non-metals
Exercise | Q 1.4

संबंधित प्रश्न

Write a balanced chemical equation for the reaction of zinc with potassium hydroxide solution.


What are metals? Name five metals.

 


State three reasons (of which at least one must be chemical) for believing that sodium is a metal.


Name a metal used in making electric cables 


Name a gaseous non-metal,. having greenish yellow colour.  


Name the non-metal present in abundance in the earth's crust.


Name a liquid non-metal.


`Mg +H_2SO_4 → —+ — `


Name two metals which react with cold water.


Name a non-metal which shows reducing property.


Explain the term Minerals.


Ankita bought some Glucose Powder. She felt is was adulterated with starch powder. How would she test it?


Gold and silver are used to make jewellery. Give reason


Select the appropriate option for the following statement:

The element placed in the extreme left of the Modern Periodic Table.


State whether the statement given below is true or false. If false write the correct statement.

Lead pencils contain lead.


Match the columns.

Group A Group B
1. Making sheets of metals a) Sonority
2. Making metal utensils b) Malleability
3. Making Copper wires c) Good conductor of heat
4. Making bells from metal d) Ductility

Give two examples of alloy.


Match the following:

1. Non-metals a. Silicon
2. Metals b. fire extinguisher
3. Metalloids c. dull and soft
4. Oxygen d. hard and shiny
5. Water e. supports fire

Paheli bought a statue made up of copper. To her surprise, it acquired a dull green coating after a couple of months. Explain the reason.


The non – metal which is liquid at room temperature is ______.


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