Which pair of elements from the following is used to make an alloy for trophies?
- A$Cr$ and $Zn$
- B$Ni$ and $Cu$
- C$Cu$ and $Sn$
- D$Ni$ and $Zn$
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Similar Questions
The color of $KMnO_4$ is due to:
DifficultJEE MAIN 2015
View SolutionFill in the blanks:
$(1)$ ......... acid is added to perform titrations with $KMnO_4$ and $K_2Cr_2O_7$.
$(2)$ Crystals of potassium dichromate are of ......... color,while crystals of potassium chromate are of ......... color.
$(3)$ The color of $MnO_4^{2-}$ is ......... and the color of $MnO_4^-$ is ......... .
$(1)$ ......... acid is added to perform titrations with $KMnO_4$ and $K_2Cr_2O_7$.
$(2)$ Crystals of potassium dichromate are of ......... color,while crystals of potassium chromate are of ......... color.
$(3)$ The color of $MnO_4^{2-}$ is ......... and the color of $MnO_4^-$ is ......... .
Medium
View SolutionIn making gun-barrel,the steel used is
Easy
View Solution$X + H^{+} \rightarrow Y + Na^{+} + H_2O$
$Y + KCl \rightarrow K_2Cr_2O_7 + NaCl$
Identify $X$ and $Y$ in the given reactions.
$Y + KCl \rightarrow K_2Cr_2O_7 + NaCl$
Identify $X$ and $Y$ in the given reactions.
Medium
View SolutionWhat is the use of potassium permanganate $(KMnO_4)$?
Easy
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