Day 438: MHT-CET Chemistry

1. A.
   $[\text{Co(NH}_3)_6]^{3+} > [\text{Ag(CN)}_2]^- > [\text{Cu(CN)}_4]^{2-}$
2. B.
   $[\text{Co(NH}_3)_6]^{3+} > [\text{Cu(CN)}_4]^{2-} > [\text{Ag(CN)}_2]^-$
3. C.
   $[\text{Ag(CN)}_2]^- > [\text{Co(NH}_3)_6]^{3+} > [\text{Cu(CN)}_4]^{2-}$
4. D.
   $[\text{Cu(CN)}_4]^{2-} > [\text{Ag(CN)}_2]^- > [\text{Co(NH}_3)_6]^{3+}$

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1. A.
   Lead storage battery
2. B.
   Dry cell
3. C.
   Nickel-cadmium cell
4. D.
   Mercury cell

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1. A.
   $\mathrm{Ag^+}$, $\mathrm{Au^{3+}}$ ions
2. B.
   $\mathrm{Hg^{2+}}$, $\mathrm{Pb^{2+}}$ ions
3. C.
   $\mathrm{Ca^{2+}}$ and $\mathrm{Mg^{2+}}$ ions.
4. D.
   $\mathrm{As^{3+}}$, $\mathrm{CN^-}$

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1. A.
   Se
2. B.
   Br
3. C.
   I
4. D.
   S

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1. A.
   Formation of phenyl cation is highly stable.
2. B.
   It contains a strong C-Cl bond with partial double-bond character.
3. C.
   It easily forms $SN^1$ intermediate.
4. D.
   The C-Cl bond in chlorobenzene is very weak.

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