Identify the set which does not have ambidentate ligand(s)
$\mathrm{NO}_2^{-}, \mathrm{CN}^{-}, \mathrm{C}_2 \mathrm{O}_4^{2-}$
$\mathrm{C}_2 \mathrm{O}_4^{2-}, \mathrm{H}_2 \mathrm{O}, \mathrm{SO}_4^{2-}$
$\mathrm{SCN}^{-}, \mathrm{NH}_3, \mathrm{CH}_3 \mathrm{COO}^{-}$
$\mathrm{CN}^{-}, \mathrm{SCN}^{-}, \mathrm{CH}_3 \mathrm{NH}_2$
The number of linear and crosslinked polymers in the following respectively are
Novolac, Nylon 6,6, Bakelite, PVC, melamine
1, 4
4,1
2,3
3,2
Which of the following represents the correct structure of $\beta-D-(-)$ - fructofuranose?




Which of the following statement is not correct for glucose?
Glucose does not give Schiff's test.
Glucose exists in two crystalline forms $\alpha$ - and $\beta$ -
The pentaacetate of glucose does not react with $\mathrm{NH}_2 \mathrm{OH}$.
Glucose forms addition product with $\mathrm{NaHSO}_3$.
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