Class 12ChemistryGeneral Principles and Processes of Isolation of ElementsMix Examples of General Principles and processes of Isolation of Elements
MediumThe $INCORRECT$ statement is:
- ABronze is an alloy of copper and tin.
- BBrass is an alloy of copper and nickel.
- CCast iron is used to manufacture wrought iron.
- DGerman silver is an alloy of zinc,copper and nickel.
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Similar Questions
Match the conversions in Column-$I$ with the type$(s)$ of reaction$(s)$ given in Column-$II$.
Column-$I$ Column-$II$ $A$. $PbS \rightarrow PbO$ $p$. roasting $B$. $CaCO_3 \rightarrow CaO$ $q$. calcination $C$. $ZnS \rightarrow Zn$ $r$. Carbon reduction $D$. $Cu_2S \rightarrow Cu$ $s$. self reduction
| Column-$I$ | Column-$II$ |
| $A$. $PbS \rightarrow PbO$ | $p$. roasting |
| $B$. $CaCO_3 \rightarrow CaO$ | $q$. calcination |
| $C$. $ZnS \rightarrow Zn$ | $r$. Carbon reduction |
| $D$. $Cu_2S \rightarrow Cu$ | $s$. self reduction |
In the reaction,$P_2O_5 + 3CaO \to Ca_3(PO_4)_2$,$P_2O_5$ acts as......
Medium
View SolutionBell metal is an alloy of
Match List-$I$ with List-$II$ and select the correct answer using the codes given below the list.
List-$I$ List-$II$ $1. Ti$ $A. \text{Bauxite}$ $2. Si$ $B. \text{Cerussite}$ $3. Al$ $C. \text{Van-Arkel method}$ $4. Pb$ $D. \text{Zone refining}$
| List-$I$ | List-$II$ |
|---|---|
| $1. Ti$ | $A. \text{Bauxite}$ |
| $2. Si$ | $B. \text{Cerussite}$ |
| $3. Al$ | $C. \text{Van-Arkel method}$ |
| $4. Pb$ | $D. \text{Zone refining}$ |
MediumAIIMS 2015
View SolutionAmong the following compounds,the number of those present in copper matte is $......$
$A.$ $CuCO_3$
$B.$ $Cu_2S$
$C.$ $Cu_2O$
$D.$ $FeO$
$A.$ $CuCO_3$
$B.$ $Cu_2S$
$C.$ $Cu_2O$
$D.$ $FeO$
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