Other Chemistry · JEE Advanced previous year questions

The compound(s) with P–H bond(s) is(are)

1. A.${\mathrm{H}}_3{\mathrm{PO}}_4$
2. B.${\mathrm{H}}_3{\mathrm{PO}}_3$
3. C.${\mathrm{H}}_4{\mathrm{P}}_2{\mathrm{O}}_7$
4. D.${\mathrm{H}}_3{\mathrm{PO}}_2$

The option(s) in which at least three molecules follow Octet Rule is(are)

1. A.$\mathrm{C}{\mathrm{O}}_2$, ${\mathrm{C}}_2{\mathrm{H}}_4$, NO and HCl
2. B.$\mathrm{N}{\mathrm{O}}_2$, ${\mathrm{O}}_3$, HCl and ${\mathrm{H}}_2\mathrm{S}{\mathrm{O}}_4$
3. C.$\mathrm{BC}{\mathrm{l}}_3$, NO, $\mathrm{N}{\mathrm{O}}_2$ and ${\mathrm{H}}_2\mathrm{S}{\mathrm{O}}_4$
4. D.$\mathrm{C}{\mathrm{O}}_2$, $\mathrm{BC}{\mathrm{l}}_3$, ${\mathrm{O}}_3$ and ${\mathrm{C}}_2{\mathrm{H}}_4$

The compound(s) having peroxide linkage is(are)

1. A.${\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_7$
2. B.${\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_8$
3. C.${\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_5$
4. D.${\mathrm{H}}_2\mathrm{S}{\mathrm{O}}_5$

The stoichiometric reaction of $516\mathrm{g}$ of dimethyldichlorosilane with water results in a tetrameric cyclic product $\mathbf{X}$ in $75\%$ yield. The weight (in $\mathrm{g}$) of $\mathbf{X}$ obtained is ____. $[\text{Use, molar mass }(\mathrm{g}\mathrm{mo}{\mathrm{l}}^{-1}):\mathrm{H}=1,\mathrm{C}=12,\mathrm{O}=16,\mathrm{Si}=28,\mathrm{Cl}=35.5]$