Which of the following is FALSE regarding terminal alkynes? The proton in the terminal carbon is weakly acidic. They react with H₂O, H₂SO4, HgSO4 to produce an aldehyde. The hydrohalogenation reaction yields a geminal dihalide. Treatment with alcoholic AgNO3 produces a silver acetylide.

Which of the following is FALSE regarding terminal alkynes? The proton in the terminal carbon is weakly acidic. They react with H₂O, H₂SO4, HgSO4 to produce an aldehyde. The hydrohalogenation reaction yields a geminal dihalide. Treatment with alcoholic AgNO3 produces a silver acetylide.

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter9: Alkynes: An Introduction To Organic Synthesis

Section9.SE: Something Extra

Problem 14VC: Name the following alkynes, and predict the products of their reaction with (1) H2 in the presence...

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Concept explainers

Aromatic Compounds

Aromatic organic compound or aromatic system is an important class of hydrocarbons under the branch of organic chemistry. Aromatic compounds are also called arenas. The definition of aromatic organic compounds can be stated as a class of organic compounds with a planar cyclic ring of atoms bonded through alternated single and double bonds. Due to these alternating bonds, a peculiar feature termed as ‘resonance’, that is, delocalization of pi electrons or the electrons is shared within the atoms of the ring which are present in the aromatic compounds. The word ‘aromatic’ includes a Greek word ‘aroma’ which means smell, indicating that they were named as such due to the sweet odor they produce. Many well-known flavors such as vanilla, cinnamon, and few scents from flowers are extracted from aromatic compounds. Benzene with chemical formula C6H6 is a very common aromatic compound that contains six atoms of carbon held in the cyclic ring of alternate double bonds. It is also to be noted that not all aromatic compounds contain benzene ring. This can be explained by Huckel’s rule.

Question

Which of the following is FALSE regarding terminal alkynes?

The proton in the terminal carbon is weakly acidic.

They react with H₂O, H₂SO4, HgSO4 to produce an aldehyde.

The hydrohalogenation reaction yields a geminal dihalide.

Treatment with alcoholic AgNO3 produces a silver acetylide.

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

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