MCQ
The $pH$ of blood is
- A$5.2$
- B$6.3$
- ✓$7.4$
- D$8.5$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$A.$ $Sm ^{2+}$ $B.$ $Ce ^{2+}$ $C.$ $Ce ^{4+}$ $D.$ $Tb ^{4+}$
Choose the most appropriate answer from the options given below :
(Image)
Samples $(A, B, C)$
Fig : Paper chromatography of Samples