EASY
11th Odisha Board
IMPORTANT
Earn 100

Borax bead test is responded by
(a)divalent metals
(b)metals which form coloured metaborates
(c)light metals
(d)None

50% studentsanswered this correctly

Important Questions on Group-13 Elements
EASY
11th Odisha Board
IMPORTANT
Alumina is

EASY
11th Odisha Board
IMPORTANT
Which metal is protected by layer of its own oxide?

MEDIUM
11th Odisha Board
IMPORTANT
Aluminium forms

MEDIUM
11th Odisha Board
IMPORTANT
Which of the following metals burn in air at high temperature with the evolution of much heat?

EASY
11th Odisha Board
IMPORTANT
Which metal is powdered, suspended in oils as a paint for mirrors?

MEDIUM
11th Odisha Board
IMPORTANT
Aluminium deposited as vapour on glass forms a good mirror, essentially because:

MEDIUM
11th Odisha Board
IMPORTANT
The most covalent aluminium halide is

MEDIUM
11th Odisha Board
IMPORTANT
Which of the following compounds can make cloth fireproof?
