Which of the following statements about TLC are correct ?
(i) Glycine is identified on TLC plate due to its colour.
(ii) Amino acids can be detected by spraying the TLC plate with Ninhydrin solution.
(iii) The retardatin factor is the ratio of the distance travelled by the solute to that of the solvent from the base line.
(iv) Sodium chloride is commonly used as an adsorbent.

Options

A. (ii), (iii)
B. `(i), (ii), (iii)`
C. `(ii), (iii),(iv)`
D. `(i),(iii)`

Answer

A

Explanation

The commonly used adsorbent in TLC is silica gel, aluminium oxide and cellulose.