Fill in the blanks:
$1.$ The copper layer on copper coins in the $UK$ is .......... .
$2.$ Copper-silver coins in the $UK$ are an alloy of ............ .
$3.$ The catalyst used for the oxidation of $SO_2$ to $SO_3$ is ......... .
$1.$ The copper layer on copper coins in the $UK$ is .......... .
$2.$ Copper-silver coins in the $UK$ are an alloy of ............ .
$3.$ The catalyst used for the oxidation of $SO_2$ to $SO_3$ is ......... .
(N/A) $1.$ The copper layer on copper coins in the $UK$ is $Cu$ (Copper).
$2.$ Copper-silver coins in the $UK$ are an alloy of $Cu$ and $Ag$.
$3.$ The catalyst used for the oxidation of $SO_2$ to $SO_3$ is $V_2O_5$ (Vanadium pentoxide).
$2.$ Copper-silver coins in the $UK$ are an alloy of $Cu$ and $Ag$.
$3.$ The catalyst used for the oxidation of $SO_2$ to $SO_3$ is $V_2O_5$ (Vanadium pentoxide).
Explore More
Similar Questions
What is the starting material for the preparation of $KMnO_4$?
Easy
View SolutionMatch List-$I$ with List-$II$:
List-$I$ (Transition metal/Compound/complex) List-$II$ (Catalytic Role) $A$. $V_2O_5$ $I$. Preparation of ammonia from $N_2/H_2$ mixture $B$. $Fe$ $II$. Polymerisation of alkynes $C$. $PdCl_2$ $III$. Preparation of $H_2SO_4$ from $SO_2$ $D$. $Ni$ complex $IV$. Oxidation of ethyne to ethanal
| List-$I$ (Transition metal/Compound/complex) | List-$II$ (Catalytic Role) |
| $A$. $V_2O_5$ | $I$. Preparation of ammonia from $N_2/H_2$ mixture |
| $B$. $Fe$ | $II$. Polymerisation of alkynes |
| $C$. $PdCl_2$ | $III$. Preparation of $H_2SO_4$ from $SO_2$ |
| $D$. $Ni$ complex | $IV$. Oxidation of ethyne to ethanal |
MediumNEET 2026
View SolutionCorundum is
Easy
View SolutionThe presence of $Mn$ in steel produces
Easy
View SolutionFill in the blanks:
$1.$ Heating lanthanoids with sulfur gives .......
$2.$ Mixed oxides of lanthanoids are used as catalysts in ..........
$1.$ Heating lanthanoids with sulfur gives .......
$2.$ Mixed oxides of lanthanoids are used as catalysts in ..........
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo