Question

When $M{g_2}{C_3}$ Reacts with water forming propyne, ${C_3}$$^{4 - }$ has:
A) Two sigma and two pi bonds.
B) Three sigma and one pi bonds.
C) Two sigma and one pi bonds.
D) Two sigma and three pi bonds.

Answer 1

Hint: We have to remember that the sigma and pi bonds are sorts of covalent bonds that vary in the covering of nuclear orbitals. Covalent bonds are shaped by the covering of nuclear orbitals. Sigma bonds are a consequence of the straight covering of nuclear orbitals while pi bonds are framed by the horizontal cover of two nuclear orbitals.

Complete step by step answer:
We know that Magnesium carbides respond with water to deliver magnesium hydroxide and propyne. This reaction is Hydrolysis of magnesium carbide.
The reaction is,
$M{g_2}{C_3} + 4{H_2}O \to 2Mg{\left( {OH} \right)_2} + {C_3}{H_4}$
We have to remember that the propyne (methylacetylene) is an alkyne with the compound equation \[C{H_3}C \equiv CH\]. It is a part of MAPD gas alongside its isomer propadiene (allene), which is regularly utilized in gas welding. In contrast to acetylene, propyne can be securely consolidated.
Let us see the structure of ${C_3}$$^{4 - }$ ion,
${C^ - } \equiv C - {C^{ - 3}}$

So, the correct answer is Option A.

Note: European space organizations have investigated utilizing light hydrocarbons with fluid oxygen, a generally high performing fluid rocket charge mix that would likewise be less harmful than the normally utilized MMH/NTO (monomethylhydrazine/nitrogen tetroxide). Their exploration showed that propyne would be profoundly invaluable as a rocket fuel for make expected for low Earth orbital tasks. They arrived at this determination dependent on a particular motivation expected to arrive at 370 s with oxygen as the oxidizer, a high thickness and force thickness—and the moderate breaking point, which makes the substance simpler to store than fills that must be kept at amazingly low temperatures. Propyne is an advantageous three-carbon building block for natural amalgamation. Deprotonation with n-butyllithium gives propynyllithium. This nucleophilic reagent adds to carbonyl gatherings, creating alcohols and esters. Whereas filtered propyne is costly, MAPP gas could be utilized to economically produce a lot of the reagent. Propyne, alongside 2-butyne, is additionally used to incorporate alkylated hydroquinone in the absolute combination of nutrient E.