Which fo the following is a correct statement ? ltbtgt (i) Titration is a process in which the solutions of two reagents are allowed to react .
(ii) Titration is carried out by adding the standard solution fo one reagant taken in a burette to the known volume (10 ro `20 cm^3` , mesured by a pipette) of the solution of the other reagent taken in a flask called then titration flask.
(iii) The solution taken the burette is called the titrant while that taken in the titration flask is called the analyte.
(iv) An acid-base indicator is an organic due which changes color wiht the pH of the solution at the equivalence point .

Options

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

Answer

D

Explanation

Acid-base titration is carried out for finding out the strength of one solution against the other using a pH sensitive indicator.Similarly, redox titration is used to determine the strength of a reductant`//` oxidant using redox sensitive indicator. Titration is carried out till the reagents present in both the solutions react completely. The stage at which the two reagents react completely is called the equivalenece point which is detected by aadding drop of a suitable indicator.