Which of the following is correct ?
(I) CMC of an anionic surfactant is higher than that of a non-ionic surfactant of the same chain length
(II) CMC of an anionic surfactant is lower than that of a non-ionic surfactant of the same chain length
(III) CMC of an ionic surfactant decreases in presence of small quantity of added electrolyte
(IV) CMC of an ionic surfactant increases in presence of small quantity of added electrolyte
1
(I) and (II)
2
(I) and (III)
3
(II) and (III)
4
(III) and (IV)
5
Question Not Attempted