MCQ
Which theory can be best understood by considering the formation of the chlorine molecule, $\ce{Cl_2}\ ?$
- ALewis theory.
- BLangmuir theory.
- ✓Lewis $-$ Langmuir theory.
- DKossel $-$ Lewis theory.
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$CH_3 - CH = CH - CH_3 \xrightarrow{{{O_3}}} A $$\xrightarrow[{Zn}]{{{H_2}O}} B.$
The compound $B$ is
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Cities
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Shimla
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Bengaluru
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Delhi
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Mumbai
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$p$ in $N/ m^2$
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$1.01 \times 10^5$
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$1.2 \times 10^5$
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$1.02 \times 10^5$
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$1.21 \times 10^5$ |
Given : $\Delta H _{ f }^{\ominus}\left( Al _2 O _3\right)=-1700\,kJ\,mol ^{-1}$
$\Delta H _{ f }^\theta\left( Fe _2 O _3\right)=-840\,kJ\,mol ^{-1}$
Molar mass of $Fe , Al$ and $O$ are $56,27$ and $16\,g\,mol ^{-1}$ respectively.