Question

3-Hydroxy butanal is formed when (X) reacts with (Y) in dilute (Z) solution. What are X, Y and Z?
A.$C{H_3}CHO,{(C{H_3})_2}CO,NaOH$
B.$C{H_3}CHO,C{H_3}CHO,NaCl$
C.${(C{H_3})_2}CO,{(C{H_3})_2}CO,HCl$
D.$C{H_3}CHO,C{H_3}CHO,NaOH$

Answer 1

Hint: Aldehydes and ketones fuse to form a carbonyl functional group, $C = O$. These are organic compounds with structures $ - CHO$ and $RC( = O){R'}$, where R and R' speak to carbon-containing substituents separately.

Complete step by step answer:
Carbonyl compounds, for example, aldehydes and ketones can be decreased to alcohols by utilizing reducing agents, for example, lithium aluminum hydride and so on .Aldehyde always forms primary alcohols while ketone structure forms secondary alcohols.
Thus, the correct answer to the above question is option D.

Additional information:
What is 3-Hydroxybutanal and how is it prepared?
Ans: 3-Hydroxybutanal (acetaldol) is an aldol, officially the result of the dimerization of acetaldehyde. It was once utilized in medication as a mesmerizing and narcotic.
200 $ml$ of super cold water are set in the contraption which is drenched in a cooling shower.
100 $g$ of newly refined acetaldehyde, in partitions all at once, are presented while the stopper is quickly removed, the jug being unsettled somewhat during the expansion, and incredible consideration being taken that the temperature of the substance doesn't transcend ${0^\circ }C$. An appropriate cooling shower for this stage comprises ice, water and a little hydrochloric corrosive. At the point when all the aldehyde is added, the cooling shower is supplanted by one of ice and hydrochloric corrosive, and when the temperature of the substance of the jug has tumbled to $ - {12^\circ }C$, 100 $ml$ of a 2-5% arrangement of potassium cyanide are gradually dropped in while the jug is pivoted; the temperature must be kept underneath $ - {8^\circ }C$ . After the potassium cyanide is added, the blend is saved for 2 hours beneath $ - {8^\circ }C$, the freezing combination being recharged in the event that vital, and afterward for 30 hours in a refrigerator at ${0^\circ }C$ . The subsequent sweet arrangement of light-yellow tone is immersed neglected with basic salt, and afterward immediately removed multiple times with a modestly huge volume of ether. The ethereal concentrates are dried over anhydrous sodium sulfate, the ether refined off, and the buildup refined under diminished weight. Aldol disregards at ${80^\circ } - {90^\circ }C$ and 20 $mmHg$ pressure. A pull jar containing conc. sulphuric corrosive ought to be put between the beneficiary and the siphon to ingest aldehyde fumes, which would some way or another forestall a high vacuum being gotten.

Note:
Aldehydes and Ketones are frequently called as methanoyl or formyl groups. The carbon atom of this group has 2 residual bonds that may be involved by aryl or alkyl or substituents. On the off chance that neither of these substituents is hydrogen, the compound is a Ketone. In the event that at any rate one is hydrogen, the compound is then said to be an Aldehyde.