Aluminium utensils are preferred to copper utensils.

The reason(s) why aluminium is preferred over copper for making overhead transmission cables (i) Aluminium is lighter than copper (ii) aluminium is harder than copper (iii) aluminium is less soluble in water than copper.

Give reasons for the following : (a) Aluminium wire is used in transmission cables. (b) Aluminium utensils should not be used to strore drinking water for long time. ( c) A mixture of Al pieces and NaOH is used to open the drain. (d) Aluminium alloys are used to make aircraft bodies.

Kitchen utensils are provided with a copper base because

Give reasons: Aluminium utensils should not be kept in water overnight.

Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same ? (i) Good thermal conductivity (ii) Good electrical conductivity (iii) Ductility (iv) High melting point

The usage of Aluminium is into the making of food making utensils. Which of the following properties are responsible for it? (i) Higher reactibility (ii) Higher boiling point (iii) Higher electric conductivity (iv) Higher heat conductivity