Question

Four students recorded their respective observations after performing the reaction for double displacement as:

(i) the reactants are barium chloride and sodium sulfate

(ii) a white precipitate is formed

(iii) the white precipitate is barium sulfate

(iv) a yellow precipitate is formed

The correct statements are:

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

Answer 1

The correct option is C

(i), (ii),(iii)

Double displacement reaction between Barium chloride and Sodium sulfate:

${\mathrm{BaCl}}_2+{\mathrm{Na}}_2{\mathrm{SO}}_4\to {\mathrm{BaSO}}_4+2\mathrm{NaCl}$

The ions of the reactants get exchanged as a result white precipitates of Barium sulfate$\left({\mathrm{BaSO}}_4\right)$ are formed.

Here the reactants are Barium chloride and Sodium sulfate. White precipitates of Barium sulfate are formed.

Hence, option c) is the correct answer.