The electronegative and non-metallic character from top to bottom
(A) increases
(B) decreases
(C) remain same
(D) stable
The alkaline earth metals are smaller in size and have more
(A) ionization energy
(B) electron affinity
(C) nuclear change
(D) electropositive
Sodium is extremely reactive metal, but it does not react with:
(A) Hydrogen
(B) Nitrogen
(C) Sulphur
(D) Phosphorus
Which one of the following is brittle?
(A) Sodium
(B) Aluminium
(C) Selenium
(D) Magnesium
Which metal is used for making mirrors?
(A) Lead
(B) Iron
(C) Silver
(D) Lithium
Which one the following is the lightest and floats on water:
(A) Calcium
(B) Magnesium
(C) Lithium
(D) Sodium
These are highly oxidizing agents
(A) alkali metals
(B) alkaline earth metals
(C) transition metals
(D) halogens
Chlorine has colour:
(A) pale yellow
(B) greenish yellow
(C) reddish brown
(D) purple black
Non-metalsare generally soft, but which one of the following is extremely hard?
(A) Graphite
(B) Phosphorus
(C) Iodine
(D) Diamond
