Day 114: MHT-CET Chemistry

1. A.
   $\mathrm{I\text{-}I > Br\text{-}Br > Cl\text{-}Cl > F\text{-}F}$
2. B.
   $\mathrm{Cl\text{-}Cl > Br\text{-}Br > F\text{-}F > I\text{-}I}$
3. C.
   $\mathrm{I\text{-}I > Br\text{-}Br > Cl\text{-}Cl > F\text{-}F}$
4. D.
   $\mathrm{Br\text{-}Br > F\text{-}F > I\text{-}I > Cl\text{-}Cl}$

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1. A.
   Both have trigonal pyramidal geometry and one lone pair of electrons on the central atom.
2. B.
   Both have tetrahedral geometry and one lone pair of electrons on the central atom.
3. C.
   Both have trigonal pyramidal geometry and no lone pair of electrons on the central atom.
4. D.
   Both have trigonal bipyramidal geometry and only $\mathrm{NH_3}$ has one lone pair of electrons on the central atom.

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1. A.
   Diamond and Fullerene
2. B.
   $\beta$ - Quartz and Cristobalite
3. C.
   Sodium fluoride and Magnesium oxide
4. D.
   Calcite and Aragonite

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1. A.
   Ethyl alcohol and propanone
2. B.
   Ethene and propyne
3. C.
   n-Butane and isobutane
4. D.
   Ethyl alcohol and dimethyl ether

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1. A.
   $2.728 \times 10^{-2}\ \mathrm{s^{-1}}$
2. B.
   $2.258 \times 10^{-2}\ \mathrm{s^{-1}}$
3. C.
   $1.132 \times 10^{-2}\ \mathrm{s^{-1}}$
4. D.
   $1.958 \times 10^{-2}\ \mathrm{s^{-1}}$

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