MCQ
Which one of the statements about $HOH_2CCH(OH)CHO$ is not correct ? It
- Ais an isomer of $1, 3-$ dihydroxypropanone
- ✓contains a tertiary alcoholic group
- Chas the same empirical formula as glucose
- Dcan show optical isomerism
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$n$ $l$ $m$ $s$

|
List$-I$ (Metal Ion) |
List$-II$ (Group in Qualitative analysis) |
| $(a)$ ${Mn}^{2+}$ | $(i)$ Group $- III$ |
| $(b)$ ${A} {s}^{3+}$ | $(ii)$ Group $- IIA$ |
| $(c)$ ${Cu}^{2+}$ | $(iii)$ Group $- IV$ |
| $(d)$ ${Al}^{3+}$ | $(iv)$ Group $- IIB$ |
Choose the most appropriate answer from the options given below :