MCQ
Sodium chloride when heated with conc. ${H_2}S{O_4}$ and solid potassium dichromate gives
  • A
    Chromic chloride
  • Chromyl chloride
  • C
    Chromous chloride
  • D
    None of these

Answer

Correct option: B.
Chromyl chloride
b
(b) $4NaCl + {K_2}C{r_2}{O_7} + 3{H_2}S{O_4}\, \to \,\,$

${K_2}S{O_4} + 2N{a_2}S{O_4} + \mathop {2Cr{O_2}C{l_2} + 3{H_2}O}\limits_{{\rm{Chromyl chloride}}\,\,\,\,\,\,\,\,\,\,\,} $

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Diazo-coupling is useful to prepare some
The electrolytic decomposition of dilute sulphonic acid with platinum electrode in cathodic reaction is
A solution of m-chloroaniline, $m-$chlorophenol and $\mathrm{m}$ -chlorobenzoic acid in ethyl acetate was extracted initially with a saturated solution of $\mathrm{NaHCO}_{3}$ to give fraction $\mathrm{A}$. The left over organic phase was extracted with dilute $NaOH$ solution to give fraction $\mathrm{B}$. The final organic layer was labelled as fraction $\mathrm{C}$. Fractions $\mathrm{A},\mathrm{B}$ and $\mathrm{C},$ contain respectively 
Arrange these compounds in decreasing order of reactivity for the nucleophilic addition reaction :

$(I)$ Acid chloride                   $(II)$ Aldehyde

$(III)$ Ketone                          $(IV)$ Ester

Select the correct answer from the codes given below :

Which of the following belong to actinoids series
Which is correct about zero order reaction?
The above reaction is
$\begin{array}{*{20}{c}}
  {O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {R - C - OR \to RC{H_2}OH} 
\end{array}$
For a reaction, $I^-+ OCl^-\to IO^-+ Cl^-$ is an aqueous medium, the rate of reaction is given by $\frac{{d[I{O^ - }]}}{{dt}} = K\frac{{[{I^ - }][OC{l^ - }]}}{{[O{H^ - }]}},$ The overall order of reaction is
Chlorobenzene is prepared commercially by