MCQ
Which acid has least $p{K_a}$ value
- ✓$C{l_3}C.COOH$
- B$C{l_2}CH.COOH$
- C$Cl.C{H_2}COOH$
- D$C{H_3}COOH$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Reason : Conc. $HNO_3$ reacts with metal and first produces a metal nitrate and nascent hydrogen. The nascent hydrogen then further reduces $HNO_3$ to $NO_2$.
