How can you prove that sodium hydroxide is an alkali?

Alkali metals can react with water to form hydroxides which are alkalies. Which of the following will react more vigorously with water? K, Ca, Na, Mg.

Alkali metals can react with water to form hydroxides which are alkalies. Arrange the following in the increasing order of basicity sustain your observation. NaOH, LiOH, RbOH, KOH, CsOH.

Reaction of phenol with chloroform in presence of dilute sodium hydroxide finally introduces which one of the following functional group?

HCHO and CH_3CHO are allowed to react seprately with sodium hydroxide.Name and explain the reactions involved .

When Cl_2 gas reacts with hot and concentrated sodium hydroxide solution, the oxidation number of chlorine changes from

You are given hydrochloric acid, sodium hydroxide, pure water etc. How can you identify which is acid, alkali and neutral?

Standard solution of sodium hydroxide cannot be prepared by weighing, why?