All aldehydes except one will have a carbonyl carbon bonded to just one hydrogen. The exception is formaldehyde, the simplest aldehyde, which has a carbon double bonded to oxygen and has two bonds to hydrogen.
No hydrogen atom is bonded with the carbonal group CHO except formaldehyde. CHO is bonded with the carbon atoms only.
they have the same functional group
Both aldehydes and ketones contain a C=O (carbon double bond oxygen). Ketones have this C=O somewhere in their carbon chain, but not at the start or end of the chain (ie: there are more carbons attached to the carbon containing the double bond oxygen, and no hydrogens bonded to that carbon). Aldehydes have there C=O at the end, or start of the chain, and to maintain the octet rule, there is hydrogen bonded to the oxygen containing carbon (please note that it is a C=O). The functional group of alcohol is OH. This OH is bonded directly to the last (or first) carbon in the chain. The big difference is that the carbon bond oxygen is a single bond and the hydrogen is bonded to the oxygen (not the carbon, as the case of aldehydes).
The carbonyl group present in aldehydes or ketones itself is optically inactive but if a carbon attached to carbonyl group is asymmetric (attached to four different groups or atoms) then such compound may show to enantiomers as there are two enantiomers of CH3-CHCl-CHO.
Propyne is a linear hydrocarbon with 3 carbons and 4 hydrogens. Two of the carbons are triple bonded, the remaining carbon is single bonded to the middle carbon Starting at the single bonded end, you have three hydrogens bonded to the first carbon, which is single bonded to the middle carbon. The middle carbon is triple bonded to the last carbon. The last carbon is also bonded to a hydrogen. H ...\ H-C-C≡C-H .../ H
Think of this as H2C3H2 or HC3H3 As carbon is tetravalent and hydrogen is monovalent there must be either two hydrogens bonded to a carbon that is double bonded to another that is double bonded to the third which has the remaining hydrogens double bonded. Otherwise this must be a hydrogen bonded to a carbon that is triple bonded to another carbon which is single bonded to the third carbon which is bound to three hydrogens.
they have the same functional group
The answer is 2 since the Oxygen is double bonded with a carbon O=C
Four. A terminal carbon in an alkane is bonded to 3 hydrogens and 1 carbon, while a middle carbon is bonded to 2 hydrogens and 2 carbons.
Both aldehydes and ketones contain a C=O (carbon double bond oxygen). Ketones have this C=O somewhere in their carbon chain, but not at the start or end of the chain (ie: there are more carbons attached to the carbon containing the double bond oxygen, and no hydrogens bonded to that carbon). Aldehydes have there C=O at the end, or start of the chain, and to maintain the octet rule, there is hydrogen bonded to the oxygen containing carbon (please note that it is a C=O). The functional group of alcohol is OH. This OH is bonded directly to the last (or first) carbon in the chain. The big difference is that the carbon bond oxygen is a single bond and the hydrogen is bonded to the oxygen (not the carbon, as the case of aldehydes).
No, monomers and polymers of aldehydes and ketones do not have hydroxyl groups attached. Aldehydes and ketones have a carbonyl group (C=O) attached to at least one carbon atom and do not have any hydroxyl groups (-OH) attached to the carbon chain.
Aldehydes are less sterically hindered than ketones. Also, aldehydes have fewer electron donating groups (EDG's) which can stabilize an electron-poor area. The extra carbon chain that ketones have that aldehydes do not have are the reason for both of these things. The neighboring carbon to the carbonyl carbon is an EDG and the carbon chain causes steric hindrance.
The carbonyl group present in aldehydes or ketones itself is optically inactive but if a carbon attached to carbonyl group is asymmetric (attached to four different groups or atoms) then such compound may show to enantiomers as there are two enantiomers of CH3-CHCl-CHO.
Propyne is a linear hydrocarbon with 3 carbons and 4 hydrogens. Two of the carbons are triple bonded, the remaining carbon is single bonded to the middle carbon Starting at the single bonded end, you have three hydrogens bonded to the first carbon, which is single bonded to the middle carbon. The middle carbon is triple bonded to the last carbon. The last carbon is also bonded to a hydrogen. H ...\ H-C-C≡C-H .../ H
Think of this as H2C3H2 or HC3H3 As carbon is tetravalent and hydrogen is monovalent there must be either two hydrogens bonded to a carbon that is double bonded to another that is double bonded to the third which has the remaining hydrogens double bonded. Otherwise this must be a hydrogen bonded to a carbon that is triple bonded to another carbon which is single bonded to the third carbon which is bound to three hydrogens.
aldehydes n ketones contain a carbonyl group in which carbon is attached to an oxygen with a double bond. The carbon is less electronegative than oxygen therefore carbon acts as an electrophile and oxygen acts an a nucleophile. That is carbon is partially positively charged n oxygen is partially negatively charged. Hence aldehydes n ketones are polar compounds
In the field of organic chemistry a carbonyl group consists of carbon atoms double bonded with some oxygen atoms. However, Carbonyl Esters consists of carbonyl group influenced by different alkyl groups.
A carbon-oxygen group like this is referred to as a carbonyl group by itself. Any molecule that has one bonded into it's main chain is a ketone.