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General Principles and processes of Isolation of Elements
medium

યોગ્ય જોડકાં જોડો.

$I$

$II$

$(I)$  કેલ્શિનેશન

$a$.  $2Cu­_2S + 3O_2 \rightarrow 2Cu_2O + 2SO_2$

$(II)$ રોસ્ટીંગ

$b$. $Fe_2O_3. nH_2O \rightarrow Fe_2O_3 + nH_2O$

$(III)$ ફલક્સ

$c$.  $Cr_2O_3 + 2Al \rightarrow Al_2O_3 + 2Cr$

$(IV)$ થર્મોઈટ

$d$. $SiO_2 + FeO \rightarrow FeSiO_3$

A

$I - a,\,II - b,\,III - c,\,IV - d$

B

$I - b,\, II - a, \,III - d, \,IV - c$

C

$I -d ,\, II - a,\, III - b, \,IV - c$

D

$I - c,\, II - a, \,III - b, \,IV - d$

Solution

Solution is Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
Standard 12
Chemistry

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