How can you tell when a molecule has one triple bond?
Answer:
You have to draw it out. This would be easier if you gave a compound but if you have CO (Carbon Monoxide) then:
C = 4 (4th from left)
O = 6 (6th from left)
= 10
So you have the octet rule which means an ion can't have more than 8 bonding pairs, so CO means 8+8=16
So you have 16 bonding ions and only need 10, so the you have 6 move inbetween the C and the O to make it a triple bond (2 = bond pair)
Hard to show here, but:
.. ..
: C:O: becomes :C:::O:
·· ··
By conducting some experiments as how many H or Br atoms it takes up, does it respond to Ag-NH3 test etc.
In addition to the methods mentioned above , in case of diatomic molecules u may also calculate the bond order which is = 0.5 x (no of bonding electrons - no of antibonding electrons)
if bond order = 3 , then the molecule contains a triple bond.
one easy way is to do a lewis dot structure with the compound. You can see the various bonds and lone pairs
It's called an 'ALKYNE' as in 'ETHYNE'
Where Ethane C2H6 (CH3-CH3) has been de-hydogenated to C2H2 (CH≡CH).
Take a sample of the compound and run an IR spectrum.
Triple Bonds will appear in the 1900-2300 region, depending on the exact kind of triple bond you have.
The answers post by the user, for information only, FunQA.com does not guarantee the right.
More Questions and Answers: