MCQ
The compound(s) which have $-O-O-$ bond(s) is/are
- A$BaO_2$
- B$Na_2O_2$
- C$CrO_5$
- ✓All of the above
$6 \mathrm{NaOH}+4 \mathrm{S} \rightarrow 2 \mathrm{Na}_{2} \mathrm{S}+\mathrm{Na}_{2} \mathrm{S}_{2} \mathrm{O}_{3}+3 \mathrm{H}_{2} \mathrm{O}$
$\mathrm{C}$ is $\mathrm{Na}_{2} \mathrm{S}_{2} \mathrm{O}_{3}$ which is used in photography.
$\mathrm{A}$ is $\mathrm{Ca}(\mathrm{OH})_{2}$
$\mathrm{B}$ is $\mathrm{NaOH}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| List $- I$ | List $- II$ |
| $(a)$ $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}$ | $(i)$ $5.92 \,\mathrm{BM}$ |
| $(b)$ $\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}$ | $(ii)$ $0 \,\mathrm{BM}$ |
| $(c)$ $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{4-}$ | $(iii)$ $4.90\, \mathrm{BM}$ |
| $(d)$ $\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{2+}$ | $(iv)$ $1.73\, \mathrm{BM}$ |
Choose the correct answer from the options given below.