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Model Paper 1 — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryModel Paper 11 Mark
MCQ
$-122^{\circ} C$ in Fahrenheit scale is
  • A
    $237.6^{\circ} F$
  • B
    $-317.6^{\circ} F$
  • C
    $317.6^{\circ} F$
  • ✓
    $-187.6^{\circ} F$
✓

Answer

Correct option: D.
$-187.6^{\circ} F$
(d) $-187.6^{\circ} F$
Explanation: Substituting the given value for ${ }^{\circ} C =(-122)$ in the following expression,
$
\begin{aligned}
& { }^{\circ} F=\left[1.8\left({ }^{\circ} C\right)+32\right] \\
& =[1.8 \times(-122)+32] \\
& =[(-219.6)+32] \\
& =-187.6
\end{aligned}
$
So,$-122^{\circ} C$ in Fahrenheit scale is $-187.6^{\circ} F$

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