(A) When sulphide ore is roasted,it is heated in the presence of excess air to form the gas $SO_{2}$.$S + O_{2} \longrightarrow SO_{2} (X)$For example

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(A) When sulphide ore is roasted,it is heated in the presence of excess air to form the gas $SO_{2}$.$S + O_{2} \longrightarrow SO_{2} (X)$For example: $2ZnS + 3O_{2} \longrightarrow 2ZnO + 2SO_{2}$Thereafter,$X$ $(SO_{2})$ reacts with $Cl_{2}$ in the presence of activated charcoal to give $Y$ $(SO_{2}Cl_{2})$:$SO_{2} + Cl_{2} \xrightarrow{\text{activated charcoal}} SO_{2}Cl_{2} (Y)$Thus,$Y$ is $SO_{2}Cl_{2}$.

Class 12 Chemistry General Principles and Processes of Isolation of Elements Roasting and Calcination

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Sulphide ore on roasting gives a gas $X$. $X$ reacts with $Cl_{2}$ in the presence of activated charcoal to give $Y$. $Y$ is

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A
$SO_{2}Cl_{2}$
B
$S_{2}Cl_{2}$
C
$SCl_{6}$
D
$SOCl_{2}$

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General Principles and Processes of Isolation of Elements

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Roasting and Calcination

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The process of roasting of an ore is carried out in the

Easy

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Which one of the following is not an example of calcination?

MediumJEE MAIN 2023

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Heating of ore in the presence of air to remove sulphur impurities is called:

Easy

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Match the following:

List-$I$ List-$II$

$(I)$ Calcination $a. Fe_2O_3 \cdot nH_2O \rightarrow Fe_2O_3 + nH_2O$

$(II)$ Roasting $b. 2Cu_2S + 3O_2 \rightarrow 2Cu_2O + 2SO_2$

$(III)$ Flux $c. SiO_2 + FeO \rightarrow FeSiO_3$

$(IV)$ Thermite $d. Cr_2O_3 + 2Al \rightarrow Al_2O_3 + 2Cr$

List-$I$	List-$II$
$(I)$ Calcination	$a. Fe_2O_3 \cdot nH_2O \rightarrow Fe_2O_3 + nH_2O$
$(II)$ Roasting	$b. 2Cu_2S + 3O_2 \rightarrow 2Cu_2O + 2SO_2$
$(III)$ Flux	$c. SiO_2 + FeO \rightarrow FeSiO_3$
$(IV)$ Thermite	$d. Cr_2O_3 + 2Al \rightarrow Al_2O_3 + 2Cr$

Medium

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Among the following,the calcination process is

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Sulphide ore on roasting gives a gas $X$. $X$ reacts with $Cl_{2}$ in the presence of activated charcoal to give $Y$. $Y$ is

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The process of roasting of an ore is carried out in the

Which one of the following is not an example of calcination?

Heating of ore in the presence of air to remove sulphur impurities is called:

Match the following: List-$I$ List-$II$ $(I)$ Calcination $a. Fe_2O_3 \cdot nH_2O \rightarrow Fe_2O_3 + nH_2O$ $(II)$ Roasting $b. 2Cu_2S + 3O_2 \rightarrow 2Cu_2O + 2SO_2$ $(III)$ Flux $c. SiO_2 + FeO \rightarrow FeSiO_3$ $(IV)$ Thermite $d. Cr_2O_3 + 2Al \rightarrow Al_2O_3 + 2Cr$

Among the following,the calcination process is

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Match the following:

List-$I$ List-$II$

$(I)$ Calcination $a. Fe_2O_3 \cdot nH_2O \rightarrow Fe_2O_3 + nH_2O$

$(II)$ Roasting $b. 2Cu_2S + 3O_2 \rightarrow 2Cu_2O + 2SO_2$

$(III)$ Flux $c. SiO_2 + FeO \rightarrow FeSiO_3$

$(IV)$ Thermite $d. Cr_2O_3 + 2Al \rightarrow Al_2O_3 + 2Cr$