Download App

p -Block elements - ll — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistryp -Block elements - ll1 Mark
MCQ
$S{O_2}$ is obtained when
  • A
    Oxygen reacts with dilute sulphuric acid
  • B
    Hydrolysis of dilute ${H_2}S{O_4}$
  • C
    Concentrated ${H_2}S{O_4}$ reacts with $N{a_2}S{O_3}$
  • ✓
    Both (b) and (c)
✓

Answer

Correct option: D.
Both (b) and (c)
d
(d) $\mathop {N{a_2}S{O_3}}\limits_{(S)} + \mathop {{H_2}S{O_4}}\limits_{(aq)} \, \to \,\mathop {N{a_2}S{O_4}}\limits_{(aq)} + \mathop {{H_2}O}\limits_{(l)} + \mathop {S{O_2}}\limits_{(g)} $

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

Explore more

More "M.C.Q (1 Marks)" from p -Block elements - ll→p -Block elements - ll — all question types→Chemistry STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

Which of the following is the weakest reducing agent
→
When $20 \mathrm{~g}$ of naphthoic acid $\left(\mathrm{C}_{11} \mathrm{H}_8 \mathrm{O}_2\right)$ is dissolved in $50 \mathrm{~g}$ of benzene $\left(\mathrm{K}_{\mathrm{f}}=1.72 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right)$, a freezing point depression of $2 \mathrm{~K}$ is observed. The van't Hoff factor $(i)$ is
→
Which of the following cannot be used as an antacid?
→
Which of the following is responsible for heredity character
→
The $pK_a$ values for the three ionizable groups $X , Y$ and $Z$ of glutamic  acid are $4.3, 9.7$ and $2.2$ respectively

$\begin{matrix}
   \underset{X}{\mathop{H}}{{O}_{2}}C-C{{H}_{2}}-CH-C{{O}_{2}}\underset{Z}{\mathop{H}}\,  \\
   \,\,\,\,\,\,\,\,\,\,\,|  \\
   \,\,\,\,\,\,\,\,\,\,\,\,\,+N{{H}_{3}}  \\
\end{matrix}$

The isoelectric point for the amino acid is

→
$(i)\,\,\begin{matrix}
   CHO\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   |\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   {{(CH-OH)}_{3}}\,\,\,\,\,\,  \\
   |\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   \,\,C{{H}_{2}}-OH\,\,\,\,\,\,\,\,\,\,  \\
\end{matrix}\xrightarrow{4HI{{O}_{4}}} Product$ $(ii)\,\,\begin{matrix}
   C{{H}_{2}}OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   |\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   {{(CH-OH)}_{4}}\,\,\,\,\,\,  \\
   |\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   \,\,C{{H}_{2}}-OH\,\,\,\,\,\,\,\,\,\,  \\
\end{matrix}\xrightarrow{5HI{{O}_{4}}} Product$

Ratio of moles of formic acid obtained in reaction $(i)$ and reaction $(ii)$ is

→
Which one of the following does not exhibit the phenomenon of mutarotation ?
→
The addition of a catalyst during a chemical reaction alters which of the following quantities?
→
The values of the crystal field stabilization energies for a high spin $d ^{6}$ metal ion in octahedral and tetrahedral fields, respectively, are :
→
Certain crystals produce electric signals on application of pressure. This phenomenon is called:
→