Question

Formula of Freon-112 is-

• A. $C_2{F}_2{Cl}_4$
• B. ${CF}_2{Cl}_2$
• C. ${CFCl}_3$
• D. ${CCl}_{3}F$

Answer 1

The correct option is A

${\mathrm{C}}_2{\mathrm{F}}_2{\mathrm{Cl}}_4$

The nomenclature of Freon is dependent on the number of Carbon ($\mathrm{C}$), Hydrogen ($\mathrm{H}$), and Fluorine ($\mathrm{F}$) atoms present in the molecular formula of Freon.

For example Freon-XYZ

Where,

X = Number of Carbon atoms present in freon molecule $-1$

Y = Number of Hydrogen atoms present in freon molecule$+1$

Z = Number of Fluorine atoms present in freon molecule

Explanation for correct option:

Determine the formula for given compounds:

(A) For ${\mathrm{C}}_2{\mathrm{F}}_2{\mathrm{Cl}}_4$, the values of XYZ will be:

X can be determined by the subtraction of number of Carbon atom present in the given Freon by 1. Thus, X will be:

$\mathrm{X}=2-1=1$

Y can be determined by the addition of number of Hydrogen atoms present in freon molecule and 1. Thus, Y will be:

$\mathrm{Y}=0+1=1$

Z simply determines the number of Fluorine atoms present in freon molecule. For this compound, Z is 2.

Thus, the formula of this Freon will be Freon-112.

Explanation for incorrect options:

(B) For ${\mathrm{CF}}_2{\mathrm{Cl}}_2$ the values of XYZ will be:

X can be determined by the subtraction of number of Carbon atom present in the given Freon by 1. Thus, X will be:

$\mathrm{X}=1-1=0$

Y can be determined by the addition of number of Hydrogen atoms present in freon molecule and 1. Thus, Y will be:

$\mathrm{Y}=0+1=1$

Z simply determines the number of Fluorine atoms present in freon molecule. For this compound, Z is 2.

Thus, the formula of this Freon will be Freon-012.

(C) For ${\mathrm{CFCl}}_3$: the values of XYZ will be:

X can be determined by the subtraction of number of Carbon atom present in the given Freon by 1. Thus, X will be:

$\mathrm{X}=1-1=0$

Y can be determined by the addition of number of Hydrogen atoms present in freon molecule and 1. Thus, Y will be:

$\mathrm{Y}=0+1=1$

Z simply determines the number of Fluorine atoms present in freon molecule. For this compound, Z is 1.

Thus, the formula of this Freon will be Freon-011.

(D) For ${\mathrm{CCl}}_3\mathrm{F}$ , the values of XYZ will be:

X can be determined by the subtraction of number of Carbon atom present in the given Freon by 1. Thus, X will be:

$\mathrm{X}=1-1=0$

Y can be determined by the addition of number of Hydrogen atoms present in freon molecule and 1. Thus, Y will be:

$\mathrm{Y}=0+1=1$

Z simply determines the number of Fluorine atoms present in freon molecule. For this compound, Z is 1.

Thus, the formula of this Freon will be Freon-011.

Final answer:

Hence, option (A) is correct.