Why are utensils made up of aluminium and brass?

Short/Brief Note

The cooking utensils are made up of aluminium and brass because they are good conductors of heat.
Aluminium will form a layer of protective oxide that prevents further reaction. Also aluminium is also relatively cheap and that is why it is used widely in making utensils.

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Chapter 9 Matter around us
Exercises | Q V. 3. | Page 102

Fill in the blank

A pure substance has definite.................. and constant ..............

Is food that we eat a mixture ?

What are the different types of mixtures ?

Give two examples of the following.
Non-metals which are lustrous

Tick (√) the correct alternative from the choice given for the following statement.
Sugar is a compound which consists of the elements

Select the correct answer from the choice given below.
The element which is malleable

‘An atom is the basic unit of an element’. Draw a diagram of an atom – divisible as seen today.

State why brass is considered as a homogenous mixture while a mixture of iron & sulphur – heterogenous.

The diagram represents fractional distillation for the separation of mixtures. Answer the following :

Can two immiscible liquids be separated by this process?
Separation of liquids by this process is based on which physical property?
If methyl alcohol & water are to be separated, which liquid would remain in flask ‘X’ after condensation.
Give a reason for the above answer.
State the purpose of the fractionating column in the apparatus.

What is the Latin name of Sodium?