Hydrogen is attached to carbon molecule with single bond and not double bond because the hydrogen atom joins to one of the carbon atoms originally in the double bond.
Each carbon adjacent to a double bond will have one hydrogen atom attached. This is because carbons in a double bond are typically bonded to three other atoms or groups, one of which is the other carbon in the double bond, leaving room for only one hydrogen atom.
Simple answer ... you need at least one hydrogen attached to carbinol carbon. in other words, you have a hydrogen on the oxygen to give you the hydroxyl group that is attached to the carbinol carbon, but you also need a hydrogen coming off that carbon. The reason - your reagent, such as chromic acid, joins with the alcohol at the position of the hydroxyl group, which leads to an H2O molecule being shot off. The chromic acid provides the -OH of that water, but takes the H off the hydroxyl group to get the 2nd hydrogen atom. You would now have a chromate ester + water. The water then takes off a hydrogen atom attached to the carbinol carbon, which leaves the electrons to form a double bond with the Oxygen atom. Without the hydrogen attached to the carbinol carbon ... like in a tertiary alcohol ... oxidation could only take place by breaking carbon-carbon bonds, which requires severe conditions. Even if this did happen, you would get a mixture of products.
The dot structure for C6H12 would show carbon atoms forming a ring with alternating single and double bonds, as in benzene. Each carbon atom is bonded to two hydrogen atoms, resulting in a total of 12 hydrogen atoms around the ring. The structure can be depicted as a hexagon with alternating single and double bonds and hydrogen atoms attached to each carbon atom.
A cycloalkene with one double bond and 3 carbon atoms has 6 hydrogen atoms. Each carbon atom forms 1 covalent bond with a hydrogen atom, and there are 3 carbon atoms in the structure.
The general formula for benzene is C6H6. Benzene consists of a hexagonal ring of six carbon atoms with alternating single and double bonds between them, along with six hydrogen atoms attached to the carbon atoms.
Each carbon adjacent to a double bond will have one hydrogen atom attached. This is because carbons in a double bond are typically bonded to three other atoms or groups, one of which is the other carbon in the double bond, leaving room for only one hydrogen atom.
Carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. The defining structure is a nitrogen attached to a carbon that is attached to another carbon that is double bound to an oxygen. The nitrogen side is called the Amino terminal, and the other side is called the carboxy terminal. What makes amino acids different is the R group that is attached to the first carbon I mentioned with the simplest being a hydrogen. N | C-R | C=0 | O Hydrogen not shown to simplify.
Imines are those compounds in which nitrogen is attached to a carbon through double bond and to hydrogen through single bond, R-CH=N-H, carbon and nitrogen both are sp2 hybridized, they behave just like unsaturated hydrocarbons
The number of hydrogen atoms attached to the carbon backbone is the lowest in unsaturated fats (in contrast to saturated fats). This is due to double-bonding.
Simple answer ... you need at least one hydrogen attached to carbinol carbon. in other words, you have a hydrogen on the oxygen to give you the hydroxyl group that is attached to the carbinol carbon, but you also need a hydrogen coming off that carbon. The reason - your reagent, such as chromic acid, joins with the alcohol at the position of the hydroxyl group, which leads to an H2O molecule being shot off. The chromic acid provides the -OH of that water, but takes the H off the hydroxyl group to get the 2nd hydrogen atom. You would now have a chromate ester + water. The water then takes off a hydrogen atom attached to the carbinol carbon, which leaves the electrons to form a double bond with the Oxygen atom. Without the hydrogen attached to the carbinol carbon ... like in a tertiary alcohol ... oxidation could only take place by breaking carbon-carbon bonds, which requires severe conditions. Even if this did happen, you would get a mixture of products.
The dot structure for C6H12 would show carbon atoms forming a ring with alternating single and double bonds, as in benzene. Each carbon atom is bonded to two hydrogen atoms, resulting in a total of 12 hydrogen atoms around the ring. The structure can be depicted as a hexagon with alternating single and double bonds and hydrogen atoms attached to each carbon atom.
In fatty acids, having no carbon-carbon double bond makes the molecule saturated with hydrogen atoms.
In ethene, two hydrogen atoms are attached to each of the two carbon atoms. The carbon atoms are joined by a double bond. This results in a linear arrangement with the hydrogens positioned on opposite sides of the molecule.
A cycloalkene with one double bond and 3 carbon atoms has 6 hydrogen atoms. Each carbon atom forms 1 covalent bond with a hydrogen atom, and there are 3 carbon atoms in the structure.
the difference in structure between a saturated and an unsaturated compound is found in their bonds. A Saturated compound contain only one carbon-carbon signle bond. all the four bonds of carbon are fully utilised and no more hydrogen or other atoms can attach to it. Thus, they can undergo only substitution reactions. (aka ALKANES). An Unsaturated Compound contain one double covalent bond between carbon atoms or a triple covalent bond between carbon atoms. the bonds of carbon are not fully utilised by hydrogen atoms, more of these can be attached to them. Thus, they undergo addition reactions as they have two or more hydrogen atoms less than the saturated hydrocarbons
The general formula for benzene is C6H6. Benzene consists of a hexagonal ring of six carbon atoms with alternating single and double bonds between them, along with six hydrogen atoms attached to the carbon atoms.
Benzene is composed of carbon and hydrogen atoms. It consists of a ring of six carbon atoms bonded together in a hexagonal structure with alternating single and double bonds. There are no other elements present in the benzene molecule.