Class 12ChemistryGeneral Principles and Processes of Isolation of ElementsMix Examples of General Principles and processes of Isolation of Elements
EasyThe alloy,which contains $95 \%$ aluminium and small amounts of copper,magnesium and manganese is . . . . . .
- Amagnalium
- Baluminium bronze
- Cinvar
- Dduralumin
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Similar Questions
Which of the following statements is correct?
Extraction of copper from copper pyrite $CuFeS_2$ involves:
$A$. Crushing followed by concentration of the ore by froth-flotation
$B$. Removal of iron as slag
$C$. Self-reduction step to produce 'blister copper' following evolution of $SO_2$
$D$. Refining of 'blister copper' by carbon reduction
$A$. Crushing followed by concentration of the ore by froth-flotation
$B$. Removal of iron as slag
$C$. Self-reduction step to produce 'blister copper' following evolution of $SO_2$
$D$. Refining of 'blister copper' by carbon reduction
In the reaction,$P_2O_5 + 3CaO \to Ca_3(PO_4)_2$,$P_2O_5$ acts as......
Medium
View SolutionWhich of the following is incorrectly matched?
Easy
View SolutionMatch List-$I$ with List-$II$:
List-$I$ (Property) List-$II$ (Element/compound) $I$. Explosive $A$. $Cu$ $II$. Self-reduction $B$. $Fe_3O_4$ $III$. Magnetic material $C$. $Cu(CH_3COO)_2 \cdot Cu(OH)_2$ $IV$. Verdigris $D$. $Pb(NO_3)_2$
| List-$I$ (Property) | List-$II$ (Element/compound) |
| $I$. Explosive | $A$. $Cu$ |
| $II$. Self-reduction | $B$. $Fe_3O_4$ |
| $III$. Magnetic material | $C$. $Cu(CH_3COO)_2 \cdot Cu(OH)_2$ |
| $IV$. Verdigris | $D$. $Pb(NO_3)_2$ |
Difficult
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