Q. a) What was the original name of Swami Dayananda Saraswati? b) Who was his guru? c) What was his Motto? d) What did the Arya Samaj advocate?
Q. Compare the alkali metals and alkaline earth metals with respect to (i) ionization enthalpy (ii) basicity of oxides and (iii) solubility of hydroxides.
Q. Differentiate between the terms sedimentation and decantation with a suitable experimental technique.