Concept explainers
(a)
Interpretation:
The first organic compound which is prepared by laboratory process and the compound prepared from has to be mentioned.
(a)
Answer to Problem 175MP
The given blanks based on
Explanation of Solution
The correct responses are urea and Ammonium cyanate.
The first organic compound that is synthesized in the laboratory, rather than isolated from nature was urea synthesized from inorganic chemical Ammonium cyanate by Friedrich Wohler in
(b)
Interpretation:
The name for an organic compound having carbon-carbon bonds are all single bonds has to be mentioned.
(b)
Explanation of Solution
The correct response is Alkane.
An organic compound whose all carbon-carbon bonds are single is said to be an alkane. Alkanes are saturated hydrocarbons.
(c)
Interpretation:
The general orientation of the four pairs of electrons around the carbons present in alkanes has to be stated.
(c)
Explanation of Solution
The correct response is Tetrahedral.
The general orientation of the four pairs of electrons around the carbon atoms in alkanes is tetrahedral. As carbon is tetravalent and
(d)
Interpretation:
The name for an alkane in which carbon atom form a single unbranched chain has to be mentioned.
(d)
Explanation of Solution
The correct response is n-alkanes.
Alkanes in which the carbon atoms form a single unbranched chain contain normal hydrocarbon chain and are said to be n-alkanes that is normal alkane.
(e)
Interpretation:
The term for structural isomerism occurs when two molecules have the same number of each type of atom but exhibit different arrangements has to be determined.
(e)
Explanation of Solution
The correct response is chain.
Structural isomerism occurs when two molecules have the same number of each type of atom but they exhibit different arrangement of the chain between those atoms.
(f)
Interpretation:
The ending name for the systematic names of all saturated hydrocarbons has to be mentioned.
(f)
Explanation of Solution
The correct response is –ane.
The systematic names of all saturated hydrocarbons have the ending –ane added to a root name that indicates the number of carbon atoms in the molecule.
(g)
Interpretation:
The root name for the hydrocarbon comes from the number of carbon atoms in the continuous chain in the molecule has to be mentioned.
(g)
Explanation of Solution
The correct response is longest.
For a branched hydrocarbon, the root name for the hydrocarbon comes from the number of carbon atoms in the longest continuous chain in the molecule.
(h)
Interpretation:
The correct word suitable for the position of substituents along the hydrocarbon framework of a molecule are indicated has to be mentioned.
(h)
Explanation of Solution
The correct response is numbers.
The positions of substituents along the hydrocarbons framework of a molecule are indicated by the numbers of the carbon atoms to which the substituent’s attached.
(i)
Interpretation:
In which reaction the major use of alkanes has been a source of heat and light has to be said.
(i)
Explanation of Solution
The correct response is substitution.
The major use of alkanes has been in substitution reactions, as a source of heat and light.
(j)
Interpretation:
Alkanes undergo which type of reaction with very reactive agents, whereby a new atom replaces one or more hydrogen atoms of the alkane has to be said.
(j)
Explanation of Solution
The correct response is substitution.
With very reactive agents, such as the halogen, alkane undergoes substitution reactions, whereby a new atom replaces one or more hydrogen atoms of the alkane.
(k)
Interpretation:
The type of reaction for alkenes and alkynes are characterized by their ability to undergo rapid by which other atoms attach themselves to the carbon atoms of the double or triple bond has to be said.
(k)
Explanation of Solution
The correct response is addition.
Alkenes and alkynes are characterized by their ability to undergo rapid complete addition reactions, by which other atoms attach themselves to the carbon atoms of the double or triple bond.
(l)
Interpretation:
The name of the process for conversion of unsaturated fats to saturated fats has to said.
(l)
Explanation of Solution
The correct response is hydrogenation.
Unsaturated fats may be converted to saturated fats by the process of hydrogenation. It is a process in which an unsaturated fat is converted into a solid fat.
(m)
Interpretation:
The name of the hydrocarbons which has the benzene as parent member of the group of hydrocarbons has to be said.
(m)
Explanation of Solution
The correct response is Aromatic.
Benzene is the parent number of the group of hydrocarbons called Aromatic.
(n)
Interpretation:
The term for an atom or group of atoms that imparts new and characteristic properties to an organic molecule has to be said.
(n)
Explanation of Solution
The correct response is functional.
An atom or group of atoms that imparts new and characteristic properties to an organic molecule is called a
(o)
Interpretation:
The name for an alcohol is one in which there is only one hydrocarbon group attached to the carbon atom holding the hydroxyl group has to be said.
(o)
Explanation of Solution
The correct response is methyl.
A methyl alcohol is one in which there is only one hydrocarbon group attached to the carbon atom holding the hydroxyl group.
(p)
Interpretation:
The raw material for the industrial preparation of methanol by the hydrogenation process has to be said.
(p)
Explanation of Solution
The correct response is water gas.
The simplest alcohol, methanol is prepared industrially by the hydrogenation of water gas.
(q)
Interpretation:
The common process for preparation of ethanol has to be said.
(q)
Explanation of Solution
The correct response is fermentation.
Ethanol is commonly prepared by the fermentation of certain sugars by yeast.
(r)
Interpretation:
The functional group present in both
(r)
Explanation of Solution
The correct response is carbonyl.
Both aldehyde and ketones contain the carbonyl group but they differ in where this group occurs along the hydrocarbon chain.
(s)
Interpretation:
The name of the reaction for preparation of aldehydes and ketones from corresponding alcohols has to be said.
(s)
Explanation of Solution
The correct response is oxidation.
Aldehydes and ketones prepared by the oxidation of the corresponding alcohol.
(t)
Interpretation:
The nature of the group which contain the organic acids, typically weak acids has to be identified.
(t)
Explanation of Solution
The correct response is electron releasing.
Organic acids which contain the electron releasing group are typically weak acids.
(u)
Interpretation:
The name of the sweet-smelling compounds which obtained from the condensation reaction of an organic acid with what has to be determined.
The correct responses are ester and alcohol.
The typical sweet-smelling compounds called ester results from the condensation reaction of an organic acid with an alcohol.
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Chapter 22 Solutions
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