Answer:
The three-step synthesis of trans-2-pentene from acetylene is as follows.
<u>Step -1:</u> Formation of higher order terminal alkyne on reaction with sodium acetylides with haloalkanes.
<u>Step -2:</u> Formation terminal alkyne to nonterminal alkynes.
<u>Step -3:</u> Formation of trans-pent - 2-pent-ene by reduction.
Explanation:
Synthesis of trans-pent-2-yne from ethyne takes place is mainly a three step synthesis which involves formation of higher order terminal alkyne on reaction with sodium acetylides with haloalkane. Second step involves the further alkylation of terminal alkynes to higher order nonterminal alkynes and the third step involves the formation of trans-2-ene by dissolving reduction method.
The chemical reaction of each step of chemical reactions is as follows.
Answer:
gravity is the explination
Explanation:
To round 409,614 to the nearest thousand you have to eliminate the units, the tens and the hundreds, and then round the number in the place of the thousands according to the number eliminated from the place of the hundreds: if the eliminated number is smaller than 5, the number in the thousands is increased in one unit; if the eliminated number is 5 or greater, then the number of the thousands must be increased in one unit. Given that the number in the hundreds is 6, you have to increase 409 to 410 ant the resultant number is 410,000. <span>Answer: 410,000.</span>