View Solution Alkenes and alkynes are unsaturated hydrocarbons and undergo electrophilic addition reactions. In alkenes, the addition occurs in one step while in alkynes the addition occurs in two steps. Alkenes show geometrical isomerism but alkynes do not. Alkynes are more acidic than alkenes which...
Why are the alpha-hydrogens in an aldehyde or ketone more acidic than any of the other hydrogens? Why can you not distinguish between an aldehyde and a ketone using only the 2,4-dinitrophenylhydrazine reagent? Why are aldehydes more reactive towards nucleophiles than ketones?
“Polyyne” refers to the presence of several alkynes. In ginseng, the total content of polyacetylene has been reported to be 0.020–0.073 % [27], and diacetyl alcohol, triacetyl alcohol, acetic acid, and linolenic acid are the polyacetylenes found in ginseng [28]. Liu et al. [29] ...
The unit cells are the fully symmetrical tiniest constitutional unit repeated to form the crystal's lattice framework. Six lattice parameters decide its geometry- the cell edge lengths (a,b,c) and the angles between them (α,β,γ). Answer and Explanation: ...