MCQ
The correct order of atomic/ionic radii is
- ✓$Sc >T i > V > C r$
- B$Co > Ni > Cu > Zn$
- C$S^{2-}>Cl^->O^{2-}>N^{3-}$
- DNone of these
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$N, O, F, C, S i$
Choose the correct answer from the options given below:
$(A)$ $T$ is soluble in hot aqueous $NaOH$
$(B)$ $U$ is optically active
$(C)$ Molecular formula of $W$ is $C _{10} H _{18} O _4$
$(D)$ $V$ gives effervescence on treatment with aqueous $NaHCO _3$