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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

Name the Following: a Metal Used in Packaging. - Chemistry

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प्रश्न

Name the following:

A metal used in packaging.

एक शब्द/वाक्यांश उत्तर

उत्तर

Aluminium

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अध्याय 6: Metals and Non-metals - Objective Type Questions

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विराफ जे दलाल New Simplified Middle School Chemistry [English] Class 7
अध्याय 6 Metals and Non-metals
Objective Type Questions | Q 3.2

संबंधित प्रश्न

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

Copper displaces zinc from zinc sulphate solution. ( )


Saloni took a piece of burning charcoal and collected the gas evolved in a test tube.

(a) How will she find the nature of the gas?

(b) Write down word equations of all the reactions taking place in this process.


State one use of Gold.


Name an alloy of lead and tin.


Fill in the following blank with suitable word:

The electrical conductivity and melting point of an alloy is ........... than that of pure metals.


What is a thermite reaction? Explain with the help of an equation. State one use of this reaction.


Mention two uses of the following metals and non-metals 

Oxygen


Give reasons 

Graphite is used in the leads of pencils  


Fill in the blank spaces by choosing the correct words from the given list. 

List: amalgam, chlorine, gallium, sodium chloride, silver chloride 

______ is a liquid metal. 

 


Write name.

The oxide that forms salt and water by reacting with both acid and base.


Write scientific reason.

Anodes need to be replaced from time to time during the electrolysis of alumina.


What is it made from? Why?

Ornaments


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

Zinc


The minerals from which the metal can be separated economically are called _______.


Soft metal : Na : : hard metal : _______


Aluminium: _______: gold : : electric insulator


Halogen reacts with acid.


An element which is always lustrous, malleable and ductile is ______.


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


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


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