A keto ester (X) with molecular formula \[{{C}_{6}}{{H}_{10}}{{O}_{3}}\] on treatment with NaOH and \[{{l}_{2}}\] does not give iodoform but on boiling with dilute KOH gives a compound (Y) with molecular formula \[{{C}_{4}}{{H}_{5}}{{O}_{3}}\]which upon acidification followed by heating under goes decarboxylation to give acetone. The keto ester (X) is
A solution contains \[P{{b}^{2+}}\] and \[F{{e}^{2+}}\] ions. To it some quantity of Fe and Pb is added. Then \[[E_{F{{e}^{2+}}\left| Fe \right.}^{{}^\circ }=-0.44V,E_{P{{b}^{2}}\left| Pb \right.}^{{}^\circ }=-0.126V]\]
A)
Concentration of \[P{{b}^{2+}}\] ions will remain unaffected
doneclear
B)
Concentration of \[P{{b}^{2+}}\] ions will increase
doneclear
C)
Concentration of \[F{{e}^{2+}}\] ions will increase
doneclear
D)
Concentration of \[F{{e}^{2+}}\] ions will decrease.
A current of dry air was bubbled through two bulbs, first containing 26.66 g of an organic substance in 200 g of water, second containing pure water and a tube containing fused \[CaC{{l}_{2}}\]. The loss of weight of water bulb = 0.0870 g and the gain of the weight of \[CaC{{l}_{2}}\] tube = 2.036 g. The molecular weight of the organic substance is
An organic compound 'X' having molecular formula \[{{C}_{2}}{{H}_{3}}N\]on reduction gave another compound ' Y? Upon treatment with nitrous acid,' Y' gave ethyl alcohol and on warming with chloroform and alcoholic KOH, it formed an offensive smelling compound 'Z'. The compound 'Z' is