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Which formula represents an alkyne?

May 21, 2018

Which formula represents an alkyne?

(1) CnHn 

(2) CnH2n + 2

(3) C2nHn 

(4) CnH2n – 2

 

Alkynes are a group of organic molecules that have a triple bond. The formula for alkynes is CnH2n-2, making choice 4 the correct choice. The formula for alkanes (all single bonds) is CnH2n+2, and that for alkenes (molecules that have a double bond) is CnH2n. Alkenes as well as alkynes are unsaturated hydrocarbons, while alkanes are saturated hydrocarbons.

 

Transformation Tutoring wishes our students to have an easy and fun Chemistry Regent exam, and ace it. Our chemistry tutors in NYC, Brooklyn, and online are always here to help.

 

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