Aluminium came in contact with air....

Aluminium came in contact with air.

Text Solution

Verified by Experts

Aluminium combines with oxygen to form aluminium oxide.
`underset("Aluminum")(4Al)+underset("Oxygen")(3O_(2)) to underset("Oxide")underset("Aluminium")(2Al_(2)O_(3))`

Topper's Solved these Questions

METALLURGY
CHETAN PUBLICATION|Exercise ANSWER THE FOLLOWING IN ONE OR TWO SENTENCES,|27 Videos
METALLURGY
CHETAN PUBLICATION|Exercise DISTINGUISH BETWEEN :|5 Videos
METALLURGY
CHETAN PUBLICATION|Exercise DEFINE THE FOLLOWING|17 Videos
CHEMICAL REACTIONS AND EQUATIONS
CHETAN PUBLICATION|Exercise ASSIGNMENT-3|18 Videos
PERIODIC CLASSIFICATION OF ELEMENTS
CHETAN PUBLICATION|Exercise ASSIGNMENT -2|5 Videos

Aluminium reacts with NaOH to give ………….

`Al_(2)O_(3)`

`AlCl_(3)`

`NaAlO_(2)`

`Al(OH)_(3)`

I. Aluminium chloride is obtained by heating a mixture of alumina and coke in a current of chlorine II. Anhydrous aluminium chloride is a hygroscopic substance. III. Anhydrous aluminium chloride is a colourless substance. IV. Aluminium chloride is a lewis base

I, II & III

Only II

Only I

III & IV

Assertion (A):Clay is an ore of aluminium while bauxite is not. (R ): Aluminium can be economically extracted from bauxite not from clay.

A and R are correct R explain A

A and R are correct,R does not explains A

A is correct but R is wrong

A is wrong but R is correct