MCQ
Dobereiner traids is
- A$Na$, $K$, $Rb$
- B$Mg,$$S,$$As$
- ✓$Cl$, $Br,I$
- D$P,$$S,$, $As$

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

The above reaction is an example of
Statement $(I)$ : $A$ Buffer solution is the mixture of a salt and an acid or a base mixed in any particular quantities.
Statement $(II)$ : Blood is naturally occurring buffer solution whose $\mathrm{pH}$ is maintained by $\mathrm{H}_2 \mathrm{CO}_3 / \mathrm{HCO}_3$ concentrations.
In the light of the above statements, choose the correct answer from the options given below.