MCQ
Number of $S - S$ bond is $H_2S_nO_6$
- A$n$
- ✓$(n - 1)$
- C$(n - 2)$
- D$(n + 1)$
✓
Answer
Correct option: B.
$(n - 1)$
b
The number of $S-S$ bonds in polythionic acid $\left(\mathrm{H}_{2} \mathrm{S}_{\mathrm{n}} \mathrm{O}_{6}\right)$ are $\mathrm{n}-1 .$
The number of $S-S$ bonds in polythionic acid $\left(\mathrm{H}_{2} \mathrm{S}_{\mathrm{n}} \mathrm{O}_{6}\right)$ are $\mathrm{n}-1 .$
Hence option $\mathrm{B}$ is correct.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Which of the following acids adds to propene in the presence of peroxide to give anti-Markownikoff’s product
The rate of certain reaction depends on concentration according to the equation $\frac{{ - dc}}{{dt}}\, = \,\frac{{{K_1}C}}{{1 + {K_2}C}},$ what is the order, when concentration $(c)$ is very-very high
→The $I UPAC$ name of $\begin{matrix}
C{{H}_{3}}-CO-CH-C{{H}_{2}}-C{{H}_{2}}Cl \\
|\,\,\,\,\,\,\,\,\,\,\,\, \\
C{{H}_{3}}\,\,\,\,\,\,\, \\
\end{matrix}$ is
→C{{H}_{3}}-CO-CH-C{{H}_{2}}-C{{H}_{2}}Cl \\
|\,\,\,\,\,\,\,\,\,\,\,\, \\
C{{H}_{3}}\,\,\,\,\,\,\, \\
\end{matrix}$ is
The reaction is spontaneous if the cell potential is
Which order is correct for the decreasing reactivity to ring monobromination of the following compounds
$\begin{array}{l}{C_6}{H_5}C{H_3},\\\,\,\,\,\,\,\,\,\,\,{\rm{I}}\end{array}$$\begin{array}{l}{C_6}{H_5}COOH,\\\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{II}}\end{array}$$\begin{array}{l}{C_6}{H_6}\\\,\,\,\,{\rm{III}}\end{array}$$\begin{array}{l}{C_6}{H_5}N{O_2}\\\,\,\,\,\,\,\,\,\,\,{\rm{IV}}\end{array}$
→$\begin{array}{l}{C_6}{H_5}C{H_3},\\\,\,\,\,\,\,\,\,\,\,{\rm{I}}\end{array}$$\begin{array}{l}{C_6}{H_5}COOH,\\\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{II}}\end{array}$$\begin{array}{l}{C_6}{H_6}\\\,\,\,\,{\rm{III}}\end{array}$$\begin{array}{l}{C_6}{H_5}N{O_2}\\\,\,\,\,\,\,\,\,\,\,{\rm{IV}}\end{array}$
The process in which higher hydrocarbons are broken down into lower hydrocarbons by controlled pyrolysis, is called
The maximum number of electrons that can be accommodated in a $3d$ subshell is
→Pair of ions which gives blue colour in aqueous state :
→$V^{+4},\,Ni^{+2},\, Ti^{+3}, \,Co^{+2}, \,Fe^{+3}, \,Cu^{+2}$
Match the colum
→| Column $-I$ | Column $-II$ |
| (Atomic number) | (Position of element in Periodic table) |
| $(A)$ $Z = 37$ | $(P)$ $p-$ block |
| $(B)$ $Z = 42$ | $(Q)$ $f-$ block |
| $(C)$ $Z = 34$ | $(R)$ $d-$ block |
| $(D)$ $Z = 92$ | $(S)$ $s-$ block |
Product of the above reaction will be
