Q2 of 55 Page 169

Mention use of slag.

liquid cooled slag is used in construction of roads; it is used in concrete in combination with Portland cement.


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2

Which two substances are added along with alumina to obtain aluminium from alumina by electrochemical reduction?

 2

Which substance is called slag?

 2

Which general principle is taken into consideration in determination of activity series of metals?

 2

Mention names of two softer metals.