Elements having properties of both Metals and Non-metals
Metalloids
Halogens
Alkali metals
transition metal
Reduction is _____ of electrons.
Gain
Loss
Share
None of these
__________ are good reducing agent .
Metals
Non metals
Metalloid
The affinity of chlorine for hydrogen is
Very high
Low
Very low
none of these
Chlorine belongs to group
17
15
13
11
Atomic number of chlorine atom.
16
14
Chemical formula of bleaching powder
CaCl2
CaCO3
CuHCO3
CaOCl2
Which element has the highest electron affinity?
Lithium
Nitrogen
Boron
Fluorine
Chemical formula of chloroform
CHCl3
CuCl2
Oxidation state of elements in the free state is
1
2
0
5