MCQ
Caro's acid is
- A${H_2}S{O_3}$
- B${H_3}{S_2}{O_5}$
- ✓${H_2}S{O_5}$
- D${H_2}{S_2}{O_8}$
$H - O\mathop { - \mathop S\limits_{\,||}^{\,||} - }\limits_{\,O}^{\,\,O} O - O - H$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.


$(I) $ $(II)$ $(III)$
Correct order of their basic strength is :
$(a)$ $[Co(en)_2Cl_2]Br$
$(b)$ $[Pt(NH_3)_2Cl_2Br_2]$
$(c)$ $[Co(en)_3]Cl_3$
$(d)$ $[Pt(NH_3)_4Cl_2]$
$(e)$ $[Pt(NH_3)_2Cl_2]$
$C_2H_4O(g) \longrightarrow CH_4(g) + CO(g)$ If the initial pressure of $C_2H_4O(g)$ is $80\, mm$ and total pressure at the end of $20\, minutes$ is $120\, mm$ ............ $\min$