Day 164: MHT-CET Chemistry

1. A.
   Tollen's reagent
2. B.
   $\mathrm{NaHCO_3}$
3. C.
   Fehling's solution
4. D.
   $\mathrm{NaHSO_3}$

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1. A.
   $4.96$
2. B.
   $6.96$
3. C.
   $7.54$
4. D.
   $9.04$

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1. A.
   $+3,\ -3$
2. B.
   $-3,\ +4$
3. C.
   $-4,\ +3$
4. D.
   $+5,\ +3$

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1. A.
   Concentrated $\mathrm{H_2SO_4}$
2. B.
   Dilute $\mathrm{H_2SO_4}$
3. C.
   $\mathrm{Na_2Cr_2O_7/H_2SO_4}$
4. D.
   $\mathrm{Cu}/573\ \mathrm{K}$

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1. A.
   The formation of $\mathrm{[Co(H_2O)_6]^{2+}}$ complex that has octahedral geometry.
2. B.
   The formation of $\mathrm{[Co(H_2O)_6]^{2+}}$ complex that has tetrahedral geometry.
3. C.
   The formation of $\mathrm{[Co(H_2O)_6]^{2-}}$ complex that has tetrahedral geometry.
4. D.
   The formation of $\mathrm{[Co(H_3O)_6]^{2+}}$ complex that has octahedral geometry.

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