MCQ
An ester can be prepared by the reaction of:
- ATwo alcohols
- BAn alcohol and an aldehyde.
- ✓An alcohol and an organic acid.
- DAn acid and a ketone
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$(A)$ $\left[ Cr \left( NH _3\right)_5 Cl ^2 Cl _2\right.$ and $\left[ Cr \left( NH _3\right)_4 Cl _2\right) Cl$
$(B)$ $\left[ Co \left( NH _3\right)_4 Cl _2\right]^{+}$and $\left[ Pt \left( NH _3\right)_2\left( H _2 O \right) Cl \right]^{+}$
$(C)$ $\left[ CoBr _2 Cl _2\right]^{2-}$ and $\left[ PtBr _2 Cl _2\right]^{2-}$
$(D)$ $\left[ Pt \left( NH _3\right)_3\left( NO _3\right) Cl\right.$ and $\left[ Pt \left( NH _3\right)_3 Cl \right] Br$
