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General Principles and processes of Isolation of Elements
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In liquation process used for tin $(Sn)$, the metal
A
is reacted with acid
B
is dissolved in water
C
is brought to molten form which is made to flow on a slope
D
is fused with $NaOH$.
(JEE MAIN-2022)
Solution
Liquation process is used for metal having low melting point such as tin in which they are heated and brought to molten state and made to flow down the slope while impurities with higher melting point left on the top.
Standard 12
Chemistry
Similar Questions
List $-I$ shows reaction involve in metallurgy of $Pb$ (lead) and List $-II$ shows name of processes. Match List $-I$ with List $-II$ and select correct code for your answer.
| List $-I$ | List $-II$ | ||
| $(P)$ | $PbS + 2PbO\xrightarrow{\Delta }3Pb + S{O_2} \uparrow $ | $(1)$ | Smelting |
| $(Q)$ | $PbS + \frac{3}{2}{O_2}\xrightarrow{\Delta }PbO + S{O_2} \uparrow $ | $(2)$ | Self reduction |
| $(R)$ | $PbC{O_3}\xrightarrow{\Delta }PbO + C{O_2} \uparrow $ | $(3)$ | Calcination |
| $(S)$ | $PbO+C\xrightarrow{\Delta }Pb + CO \uparrow $ | $(4)$ | Roasting |
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