MCQ
Freon (dichlorodifluoro methane) is used
- AAs local anaesthetic
- BFor dissolving impurities in metallurgical process
- ✓In refrigerator
- DIn printing industry
✓
Answer
Correct option: C.
In refrigerator
c
(c) Freon $(CC{l_2}{F_2})$ is an odourless, non-corrosive, non toxic gas which is stable even at high temperatures and pressures. It has low b.Pt, low specific heat and can be easily liquified by applying pressure at room temperature. It is therefore, widely used in refrigerant (cooling agent) in refrigerators and air conditioners.
(c) Freon $(CC{l_2}{F_2})$ is an odourless, non-corrosive, non toxic gas which is stable even at high temperatures and pressures. It has low b.Pt, low specific heat and can be easily liquified by applying pressure at room temperature. It is therefore, widely used in refrigerant (cooling agent) in refrigerators and air conditioners.
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{(2){\kern 1pt} A{g_2}O/{H_2}O} \\
{(3){\kern 1pt} \Delta }
\end{array}}]{{(1){\kern 1pt} \,excess\,{\kern 1pt} C{H_3}I/{K_2}C{O_3}}}(B)$ $\xrightarrow[{(iii){\kern 1pt} \Delta }]{{\begin{array}{*{20}{c}}
{(i){\kern 1pt} excess{\kern 1pt} C{H_3}I/{K_2}C{O_3}} \\
{(ii){\kern 1pt} A{g_2}O}
\end{array}}}$ $\begin{array}{*{20}{c}}
{{H_2}C = CH - CH - CH = C{H_2}} \\
{|{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} } \,\,\,\,\\
{{\mkern 1mu} {\mkern 1mu} C{H_3}}
\end{array}$
→{(2){\kern 1pt} A{g_2}O/{H_2}O} \\
{(3){\kern 1pt} \Delta }
\end{array}}]{{(1){\kern 1pt} \,excess\,{\kern 1pt} C{H_3}I/{K_2}C{O_3}}}(B)$ $\xrightarrow[{(iii){\kern 1pt} \Delta }]{{\begin{array}{*{20}{c}}
{(i){\kern 1pt} excess{\kern 1pt} C{H_3}I/{K_2}C{O_3}} \\
{(ii){\kern 1pt} A{g_2}O}
\end{array}}}$ $\begin{array}{*{20}{c}}
{{H_2}C = CH - CH - CH = C{H_2}} \\
{|{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} } \,\,\,\,\\
{{\mkern 1mu} {\mkern 1mu} C{H_3}}
\end{array}$
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