Which of the following metal can be easily cut with a knife?
Sodium
Barium
Aluminium
Magnesium
Which of the following property of the alkaline earth metal increases with increase in atomic number?
Electronegativity
Ionisation energy
Solubility of their sulphates
Solubility of their hydroxides
Lithium reacts with water but does not fuse in it, because of
High boiling point
Low boiling point
High melting point
Low melting point