Class 12ChemistryGeneral Principles and Processes of Isolation of ElementsMix Examples of General Principles and processes of Isolation of Elements
EasyIdentify the correct statements from the following:
$(i)$ In the extraction of $Ag$ and $Au$,zinc is used as a reducing agent.
$(ii)$ Impure zinc can be refined by distillation method.
$(iii)$ Malachite is an ore of nickel.
$(i)$ In the extraction of $Ag$ and $Au$,zinc is used as a reducing agent.
$(ii)$ Impure zinc can be refined by distillation method.
$(iii)$ Malachite is an ore of nickel.
- A$(i), (ii), (iii)$
- B$(i), (iii)$ only
- C$(ii), (iii)$ only
- D$(i), (ii)$ only
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Similar Questions
Match List-$I$ with List-$II$:
List-$I$ List-$II$ $(a)$ Sodium Carbonate $(i)$ Deacon $(b)$ Titanium $(ii)$ Castner-Kellner $(c)$ Chlorine $(iii)$ Van-Arkel $(d)$ Sodium hydroxide $(iv)$ Solvay
Choose the correct answer from the options given below:
| List-$I$ | List-$II$ |
|---|---|
| $(a)$ Sodium Carbonate | $(i)$ Deacon |
| $(b)$ Titanium | $(ii)$ Castner-Kellner |
| $(c)$ Chlorine | $(iii)$ Van-Arkel |
| $(d)$ Sodium hydroxide | $(iv)$ Solvay |
Choose the correct answer from the options given below:
The statement that is $INCORRECT$ about Ellingham diagram is :
List-$I$ shows reactions involved in the metallurgy of $Pb$ (lead) and List-$II$ shows the names of the processes. Match List-$I$ with List-$II$ and select the correct code for your answer.
List-$I$ List-$II$ $(P) \ PbS + 2PbO \xrightarrow{\Delta} 3Pb + SO_2 \uparrow$ $(1) \ \text{Smelting}$ $(Q) \ PbS + \frac{3}{2}O_2 \xrightarrow{\Delta} PbO + SO_2 \uparrow$ $(2) \ \text{Self reduction}$ $(R) \ PbCO_3 \xrightarrow{\Delta} PbO + CO_2 \uparrow$ $(3) \ \text{Calcination}$ $(S) \ PbO + C \xrightarrow{\Delta} Pb + CO \uparrow$ $(4) \ \text{Roasting}$
| List-$I$ | List-$II$ |
| $(P) \ PbS + 2PbO \xrightarrow{\Delta} 3Pb + SO_2 \uparrow$ | $(1) \ \text{Smelting}$ |
| $(Q) \ PbS + \frac{3}{2}O_2 \xrightarrow{\Delta} PbO + SO_2 \uparrow$ | $(2) \ \text{Self reduction}$ |
| $(R) \ PbCO_3 \xrightarrow{\Delta} PbO + CO_2 \uparrow$ | $(3) \ \text{Calcination}$ |
| $(S) \ PbO + C \xrightarrow{\Delta} Pb + CO \uparrow$ | $(4) \ \text{Roasting}$ |
Medium
View SolutionTo obtain steel entirely free from sulphur and phosphorus,the process used is
Medium
View SolutionWhich of the following is a ferrous alloy?
Easy
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