MCQ
Correct order of acidic strength is ?


- A$(a) > (c) > (d) > (b)$
- B$(d) > (a) > (c) > (b)$
- ✓$(d) > (c) > (a) > (b)$
- D$(d) > (c) > (b) > (a)$


Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$Pt(s) |H_2(g)\,|\,HCOOH(aq.)\,||\,CH_3COOH(aq.)\,|\,H_2(g)|Pt(s)$
at $25\,^o C$ is ............ $\mathrm{V}$
$(K_a$ of $HCOOH \,= 2.4 × 10^{-4}$ , $K_a$ of $CH_3COOH = 1.8 × 10^{-5}$ , $log\,2\, = 0.3,\, log \,0.48, \frac{2.303 \times 298 \times R}{F} = 0.06)$
Match the vitamin given is Column I with the their chemical name given in Column II.
| Column – I | Column - II | ||
| ( i ) | Vitamin B6 | ( P ) | Ascorbic acid |
| ( ii ) | Vitamin B1 | ( Q ) | Riboflavin |
| ( iii ) | Vitamin B2 | ( R ) | Thiamine |
| ( iv ) | Vitamin C | ( S ) | Pyridoxine |
