Download App

The d & f Block Elements — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryThe d & f Block Elements3 Marks
Question
Complete the following chemical reaction equations:
$\text{MnO}^-_4(\text{aq})+\text{C}_2\text{O}^{2-}_4(\text{aq})+\text{H}^+(\text{aq})\xrightarrow{\ \ \ \ \ \ \ \ \ }$
✓

Answer

$\ \ \ \ \ \ \ [\text{MnO}^-_4+8\text{H}^++5\text{e}\xrightarrow{\ \ \ \ \ \ }\text{Mn}^{2+}+4\text{H}_2\text{O}\times2]\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{[C}_2\text{O}^2_4\xrightarrow{\ \ \ \ \ \ \ \ }2\text{CO}^2_4+2\text{e}^-]\times5\\\underline{\overline{\text{MnO}_4+5\text{C}_2\text{O}^{2-}_{4}+16\text{H}^+\xrightarrow{\ \ \ \ \ \ \ }2\text{Mn}^{2+}+10\text{CO}_2+8\text{H}_2\text{O}}}$

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 "3 Marks Question" from The d & f Block Elements→The d & 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

A decimolar solution of potassium ferrocyanide is $50\%$ dissociated at $300K.$ Calculate the osmotic pressure of the solution. $(R = 8.314J\ K^{-1}\ mol^{-1}).$
→
The vapour pressure of pure liquids A and B are 450 and 700 mm Hg respectively, at 350 K . Find out the composition of the liquid mixture if total vapour pressure is 600 mm Hg. Also find the composition of the vapour phase.
→
How to prepare butan-1-ol by reduction of various derivatives of acids.
→
The rate for the reaction $R→P$ is rate = k[R]. It has been shown graphically below. What is rate constant for the reaction?
→
Boiling point of water at $750$ mm Hg is $99.63^\circ C.$ How much sucrose is to be added to $500$ g of water such that it boils at $100^\circ C.$
→
What can be inferred from the magnetic moment values of the following complex species?
Example Magnatic Moment (BM)
$K_4[Mn(CN)_6]$ $2.2$
$[Fe(H_2O)_6]^{2+}$ $5.3$
$K_2[MnCl_4]$ $5.9$
→
The mechanism of the reaction $2 NO + Br _2 \rightarrow 2 NOBr$ is :
(i) $NO + Br _2 \rightleftharpoons NOBr _2$ (fast term)
(ii) $NOBr _2+ NO \rightarrow 2 NOBr$ (slow term)
Write the rate equation for this reaction.
→
Match the items of column I with items of column II.
 
Column I
 
Column II
(i)
Antifreeze used in car engine
(a)
Neutral ferric chloride
(ii)
Solvent used in perfumes
(b)
Glycerol
(iii)
Starting material for picric acid
(c)
Methanol
(iv)
Wood spirit
(d)
Phenol
(v)
Reagent used for detection of phenolic group
(e)
Ethleneglycol
(vi)
By product of soap industry used in cosmetics
(f)
Ethanol.
→
Calculate the emf of the following cell:
$ Mg ( s )\left| Mg ^{2+}(0.2 M ) \| Ag ^{+}\left(1 \times 10^{-3} M \right)\right| Ag ( s )$
$E ^0\left( Ag ^{+} / Ag \right)=0.80 V$
$E ^0\left( Mg ^{2+} / Mg \right)=-2.37 V$
→
Write down rules for $ \text{IUPAC}$ naming of Co$-$ordination entities.
→