MCQ
Product $(A)$ is


- A

- B

- ✓

- D








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Statments $I:$ Maltose has two $\alpha$-D-glucose units linked at $C _{1}$ and $C _{4}$ and is a reducing sugar.
Statement $II:$ Maltose has two monosaccharides: $\alpha$-D-glucose and $\beta$-D-glucose linked at $C_{1}$ and $C_{6}$ and it is a non-reducing sugar.
In the light of the above statements, choose the correct answer from the options given below.
| List$-I$ | List$-II$ | ||
| $(P)$ | $[Cr(NH_3)_4Cl_2]Cl$ | $(1)$ | Paramagnetic and exhibits ionisation isomerism |
| $(Q)$ | $[Ti(H_2O)_5Cl](NO_3)_2$ | $(2)$ | Diamagnetic and exhibits cis-trans isomerism |
| $(R)$ | $[Pt(en)(NH_3)Cl]NO_3$ | $(3)$ | Paramagnetic and exhibits cis-trans isomerism |
| $(S)$ | $[Co(NH_3)_4(NO_3)_2]NO_3$ | $(4)$ | Diamagnetic and exhibits ionisation isomerism |
$(i)\,\,(CH_3)_2CH - CH_2Br \xrightarrow{{{C_2}{H_5}OH}}$ $ (CH_3)_2CH - CH_2OC_2H_5 + HBr$
$(ii)\,\,(CH_3)_2CH - CH_2Br \xrightarrow{{{C_2}{H_5}O^-}} $ $(CH_3)_2CH - CH_2OC_2H_5 + Br^-$
The mechanisms of reactions $(i)$ and $(ii)$ are respectively