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

Which of the following elements will have the lowest electron affinity
The following compound is used as
Assertion : $PbCl_2$ is more stable than $PbCl_4$.

Reason : $PbCl_4$ is powerful oxidising agent.

The hydrogen-like species $\mathrm{Li}^{2+}$ is in a spherically symmetric state $\mathrm{S}_1$ with one radial node. Upon absorbing light the ion undergoes transition to a state $\mathrm{S}_2$. The state $\mathrm{S}_2$ has one radial node and its energy is equal to the ground state energy of the hydrogen atom.

$1.$ The state $S_1$ is

$(A)$ $1 \mathrm{~s}$ $(B)$ $2 \mathrm{~s}$ $(C)$ $2 \mathrm{p}$ $(D)$ $3 \mathrm{~s}$

$2.$ Energy of the state $S_1$ in units of the hydrogen atom ground state energy is

$(A)$ $0.75$ $(B)$ $1.50$ $(C)$ $2.25$ $(D)$ $4.50$

$3.$ The orbital angular momentum quantum number of the state $S_2$ is

$(A)$ $0$ $(B)$ $1$ $(C)$ $2$ $(D)$ $3$

Give the answer question $1,2$ and $3.$

Which of the following hormones contains iodine?
Given below are two statements: One is labelled as Assertion $A$ and the other is labelled as Reason $R$:

Assertion $A$: Alcohols react both as nucleophiles and electrophiles.

Reason $R$: Alcohols react with active metals such as sodium, potassium and aluminum to yield corresponding alkoxides and liberate hydrogen.

In the light of the above statements, choose the correct answer from the options given below:

Match List $-I$ with List $-II$ and select the correct answer using the codes given below the lists
  List $-I$ (Compounds)   List $-II$ (used in)
$(A)$ $BaSO_4 +ZnS$ $(1)$ Explosive
$(B)$ $NI_3$ $(2)$ Oxidiser in rocket propellants
$(C)$ $N_2O_4$ $(3)$ Space capsule
$(D)$ $KO_2$ $(4)$ Pigment
The correct order as indicate in each option is
For the reaction ${H_2}(g) + B{r_2}(g) \to 2HBr(g)$, the experimental data suggest, rate $ = K[{H_2}]{[B{r_2}]^{1/2}}$. The molecularity and order of the reaction are respectively
The correct statement about the compounds $A$ and $B$ is