MCQ
Ferrous sulphate on heating gives
- A$SO_2$ and $SO_3$
- B$SO_2$ only
- ✓$SO_3$ only
- D$H_2S$ only
✓
Answer
Correct option: C.
$SO_3$ only
c
${S^{2 - }}\, + \,{(C{H_3}COO)_2}Pb\, \to \,\mathop {PbS}\limits_{black} \downarrow \, + \,2C{H_3}CO{O^ - }$
${S^{2 - }}\, + \,{(C{H_3}COO)_2}Pb\, \to \,\mathop {PbS}\limits_{black} \downarrow \, + \,2C{H_3}CO{O^ - }$
${S^{2 - }}\, + \,{[Fe{(CN)_5}NO]^{2 - }}\, \to \,\mathop {{{[Fe{{(CN)}_5}NOS]}^{4 - }}}\limits_{violet} $
Thus $S^{2-}$ and $SO_3^{2-}$ can be distinguished by using both the given reagents.
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
Ozonolysis products of an olefin are $OHC-CHO$ and $OHC-CH_2-CH_2-CHO$, the olefin is
→Which of the following orbital is not possible
Which of the following is not correctly matched?
The correct order of the number of unpaired electrons in the given complexes is
→$A.$ $\left[ Fe ( CN )_6\right]^{3-}$;$B.$ $\left[ FeF _6\right]^{3-}$; $C.$ $\left[ CoF _6\right]^{3-}$; $D.$ $\left[ Cr (\text { oxalate })_3\right]^{3-}$; $E.$ $\left[ Ni ( CO )_4\right]$
Choose the correct answer from the options given below:
Given the following molar conductivities at $25\,^oC$ ; $HCl$ , $426\,{\Omega ^{ - 1}}\,cm^2\,mol^{-1}\,;$ $NaCl$ , $126\,{\Omega ^{ - 1}}\,cm^2\,mol^{-1}\,;$ $NaCl$ (sodium crotonate), $83\,{\Omega ^{ - 1}}\,cm^2\,mol^{-1}$ . What is the ionization constant of crotonic acid? If the conductivity of a $0.001\,M$ crotonic acid solution is $3.83 \times {10^{ - 5}}\,{\Omega ^{ - 1}}\,c{m^{ - 1}}$ ?
→Which of the following is not halide ore ?
The compound $X\, (C_5H_8)$ reacts with ammonical $AgNO_3$ to give a white precipitate and reacts with excess of $KMnO_4$ to give the acid, $(CH_3)_2CH-COOH$, therefore $X$ is
→The decreasing order of nucleophilicity among the nucleophiles is
→$(I)$ $\begin{array}{*{20}{c}}
{C{H_3} - C - {O^ - }} \\
{\,\,\,\,\,\,||\,\,} \\
{\,\,\,\,\,\,O\,\,}
\end{array}$
$(II)$ $CH_3O^-$
$(III)$ ${C_6}{H_5}{O^\Theta }$
$(IV)$ (image)
Which of the following has maximum ionization potential
Which of the statements about anhydrous aluminium chloride is correct