These are my answers but i want to know if i have the correct ones. There is only one best answer.
A. 2,2-dimethyl butane
B. Cyclohexane
C. cis-2-pentene
D. table salt
E. acetylene
Axial/ equitorial hydrogents- B
triple bond- C
quaternary carbon- E
10 hydrogens- A
A. esters
B. Amides
3. ethers
4. anhydrides
5. ketones
Are realted to alcohols, by the replacement of H by R. C ethers
Are realted to aldehydes by the replacement of H by R. E ketones
Are realted to acids by the replacement of H by R. D anhydrides
Are realted to acids by the replacement of H by r-c=o. A esters
On #2 I think you have 3 and 4 reversed.
Do the answers look correct except for the last one
I can't help on the first one.
For the first set of answers:
- Axial/equatorial hydrogens: The correct answer is B. Cyclohexane. To determine the axial and equatorial positions in cyclohexane, you need to look at its chair conformation. In the chair conformation, the axial hydrogens are pointing straight up or down, while the equatorial hydrogens are pointing outward. Cyclohexane has both axial and equatorial hydrogens.
- Triple bond: The correct answer is E. acetylene. Acetylene, also known as ethyne, has a triple bond between two carbon atoms.
- Quaternary carbon: The correct answer is A. 2,2-dimethylbutane. A quaternary carbon refers to a carbon atom that is bonded to four other carbon atoms. In 2,2-dimethylbutane, there are two methyl groups (CH3) attached to one of the carbon atoms in the main chain, making it a quaternary carbon.
- 10 hydrogens: The correct answer is C. cis-2-pentene. To determine the number of hydrogens, you can use the formula: 2n + 2, where n is the number of carbon atoms in the molecule. In cis-2-pentene, there are five carbon atoms, so applying the formula, you get 2(5) + 2 = 12 hydrogens. However, you need to subtract two hydrogens from the total because of the double bond, giving you a total of 10 hydrogens.
For the second set of answers:
- Related to alcohols, by the replacement of H by R: The correct answer is C. ethers. Ethers are organic compounds where an oxygen atom is bonded to two carbon atoms. They are formed by replacing a hydrogen atom in an alcohol molecule with a hydrocarbon group (R).
- Related to aldehydes by the replacement of H by R: The correct answer is B. Amides. Amides are organic compounds containing a carbonyl group (C=O) bonded to a nitrogen atom (N). They are formed by replacing a hydrogen atom in an aldehyde molecule with an amino group (R-NH2).
- Related to acids by the replacement of H by R: The correct answer is D. anhydrides. Anhydrides are organic compounds formed by the removal of water from two acid molecules, resulting in the formation of a cyclic molecule containing a carbonyl group (C=O) and an oxygen atom.
- Related to acids by the replacement of H by R-C=O: The correct answer is A. esters. Esters are organic compounds formed by the condensation reaction between an alcohol and a carboxylic acid. In this reaction, the hydroxyl group (-OH) of the alcohol and the carboxylic acid group (-COOH) combine to form an ester group (-COO-), with the release of water.
So, based on your provided answers, you have 4 correct answers in the first set and 4 correct answers in the second set.