Download App

4. d and f- block elements — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistry4. d and f- block elements1 Mark
MCQ
Which of the following is not formed when $H_2S$ reacts with acidic $K_2Cr_2O_7$ solution ?
  • ✓
    $CrSO_4$
  • B
    $Cr_2(SO_4)_3$
  • C
    $K_2SO_4$
  • D
    $S$
✓

Answer

Correct option: A.
$CrSO_4$
a
$K_2Cr_2O_7+ 4H_2SO_4+ 3H_2S$  $\longrightarrow$ $K_2SO_4 + Cr_2 (SO_4)_3 + 7H_2O + 3S$

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 4. d and f- block elements→4. d and f- block elements — all question types→Chemistry STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Which is not true for electrolysis:
→
Which is not a pseudohalide ?
→
The bases that are common in both RNA and DNA are:
→
Which of the following is not optically active?
→
The formation of gas at the surface of tungsten due to adsorption is the reaction of order
→
$\begin{array}{*{20}{c}}
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,OH} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\ 
  {C{H_3} - C{H_2} - C - C{H_3}} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Ph} 
\end{array}$ can not be prepared by
→
Acetamide is treated with the following reagents separately. Which one of these would yield methyl amine?
→
Chlorobenzene on fusing with solid  $NaOH$  gives
→
For a very diluted solution preferred concentration unit is
→
The unit of cell constant is
→