In group-V, which of the following is/are non-metal/s?
a) phosphorus
b) nitrogen
c) arsenic and antimony
d) both a and b
In group-V, which of the following is/are metalloid/s?
a) phosphorus
b) nitrogen
c) arsenic and antimony
d) bismuth
In group-V, which of the following is/are metal/s?
a) phosphorus
b) nitrogen
c) arsenic and antimony
d) bismuth
Which of the following non-metal/s is/are conductor?
a) carbon
b) phosphorus
c) bromine
d) sulphur
Alkali Metals:
The elements of group-I A except hydrogen are called……
a) alkali metals
b) alkaline earth metals
c) transition metal
d) actinides
