(B) :Maleic acid and fumaric acid are geometrical isomers.
BITSAT-2020]
GENERAL ORGANIC CHEMISTRY
231978
Ammonia gas does not evolve from the complex $\mathrm{FeCl}_{3} .4 \mathrm{NH}_{3}$ but it gives white precipitate with aqueous solution of $\mathrm{AgNO}_{3}$. Co-ordination number of central metal ion in above complex is six. Give IUPAC name of the complex.
1 Ammonium trichloro triammine ferrum (III).
2 Tetra ammine ferrum (III) chloride.
3 Dichloro tetra ammine ferrate (II) chloride.
4 Dichloro tetra ammine ferrum (III) chloride.
Explanation:
(D): $\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right] \mathrm{Cl}+\mathrm{AgNO}_{3} \rightarrow\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right] \mathrm{NH}_{3}+\mathrm{AgCl} \uparrow$ The IUPAC name of the $\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]$ is Dichloro tetra ammine ferrum (III) chloride.
GUJCET-2011
GENERAL ORGANIC CHEMISTRY
231979
The number of racemic mixture obtained by optical isomers of 2,3-dihydroxy butanal is/are:
1 Three
2 Two
3 One
4 Zero
Explanation:
The chemical structure of 2,3dihydroxybutanal is given as: A mixture of equal quantities of two enantiomers, or substances that have dissymmetric molecular structures that are mirror images of one another. The compound contains the two chiral centre. Hence, 2 racemic mixtures are obtained.
GUJCET-2007
GENERAL ORGANIC CHEMISTRY
231980
A molecule having 3 different chiral carbon atoms, how many stereo-isomers it will have?
1 6
2 9
3 3
4 8
Explanation:
Number of chiral centre(n) $=3$ $\therefore$ Number of stereoisomer $=2^{\mathrm{n}}=2^{3}=8$
GUJCET-2008
GENERAL ORGANIC CHEMISTRY
231981
Metamerism can be exhibited by the compounds containing
1 Monovalent functional group
2 Bivalent functional group
3 Double bond
4 Triple bond
Explanation:
(B): Metamers are the isomers having the same molecular formula but **different alkyl group on two sides of functional group.** Compounds having bivalent functional group (like $\mathrm{C}=\mathrm{O},-\mathrm{O}-,-\mathrm{S}-$ etc) with atleast 4 carbon atoms (in case of ether and thioether) or atleast 5 carbon atoms (in case of ketones) exhibit metamerism. Hence, $\mathrm{C}_{2} \mathrm{H}_{5}-\mathrm{S}-\mathrm{C}_{2} \mathrm{H}_{5}$ will show metamerism.
(B) :Maleic acid and fumaric acid are geometrical isomers.
BITSAT-2020]
GENERAL ORGANIC CHEMISTRY
231978
Ammonia gas does not evolve from the complex $\mathrm{FeCl}_{3} .4 \mathrm{NH}_{3}$ but it gives white precipitate with aqueous solution of $\mathrm{AgNO}_{3}$. Co-ordination number of central metal ion in above complex is six. Give IUPAC name of the complex.
1 Ammonium trichloro triammine ferrum (III).
2 Tetra ammine ferrum (III) chloride.
3 Dichloro tetra ammine ferrate (II) chloride.
4 Dichloro tetra ammine ferrum (III) chloride.
Explanation:
(D): $\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right] \mathrm{Cl}+\mathrm{AgNO}_{3} \rightarrow\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right] \mathrm{NH}_{3}+\mathrm{AgCl} \uparrow$ The IUPAC name of the $\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]$ is Dichloro tetra ammine ferrum (III) chloride.
GUJCET-2011
GENERAL ORGANIC CHEMISTRY
231979
The number of racemic mixture obtained by optical isomers of 2,3-dihydroxy butanal is/are:
1 Three
2 Two
3 One
4 Zero
Explanation:
The chemical structure of 2,3dihydroxybutanal is given as: A mixture of equal quantities of two enantiomers, or substances that have dissymmetric molecular structures that are mirror images of one another. The compound contains the two chiral centre. Hence, 2 racemic mixtures are obtained.
GUJCET-2007
GENERAL ORGANIC CHEMISTRY
231980
A molecule having 3 different chiral carbon atoms, how many stereo-isomers it will have?
1 6
2 9
3 3
4 8
Explanation:
Number of chiral centre(n) $=3$ $\therefore$ Number of stereoisomer $=2^{\mathrm{n}}=2^{3}=8$
GUJCET-2008
GENERAL ORGANIC CHEMISTRY
231981
Metamerism can be exhibited by the compounds containing
1 Monovalent functional group
2 Bivalent functional group
3 Double bond
4 Triple bond
Explanation:
(B): Metamers are the isomers having the same molecular formula but **different alkyl group on two sides of functional group.** Compounds having bivalent functional group (like $\mathrm{C}=\mathrm{O},-\mathrm{O}-,-\mathrm{S}-$ etc) with atleast 4 carbon atoms (in case of ether and thioether) or atleast 5 carbon atoms (in case of ketones) exhibit metamerism. Hence, $\mathrm{C}_{2} \mathrm{H}_{5}-\mathrm{S}-\mathrm{C}_{2} \mathrm{H}_{5}$ will show metamerism.
(B) :Maleic acid and fumaric acid are geometrical isomers.
BITSAT-2020]
GENERAL ORGANIC CHEMISTRY
231978
Ammonia gas does not evolve from the complex $\mathrm{FeCl}_{3} .4 \mathrm{NH}_{3}$ but it gives white precipitate with aqueous solution of $\mathrm{AgNO}_{3}$. Co-ordination number of central metal ion in above complex is six. Give IUPAC name of the complex.
1 Ammonium trichloro triammine ferrum (III).
2 Tetra ammine ferrum (III) chloride.
3 Dichloro tetra ammine ferrate (II) chloride.
4 Dichloro tetra ammine ferrum (III) chloride.
Explanation:
(D): $\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right] \mathrm{Cl}+\mathrm{AgNO}_{3} \rightarrow\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right] \mathrm{NH}_{3}+\mathrm{AgCl} \uparrow$ The IUPAC name of the $\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]$ is Dichloro tetra ammine ferrum (III) chloride.
GUJCET-2011
GENERAL ORGANIC CHEMISTRY
231979
The number of racemic mixture obtained by optical isomers of 2,3-dihydroxy butanal is/are:
1 Three
2 Two
3 One
4 Zero
Explanation:
The chemical structure of 2,3dihydroxybutanal is given as: A mixture of equal quantities of two enantiomers, or substances that have dissymmetric molecular structures that are mirror images of one another. The compound contains the two chiral centre. Hence, 2 racemic mixtures are obtained.
GUJCET-2007
GENERAL ORGANIC CHEMISTRY
231980
A molecule having 3 different chiral carbon atoms, how many stereo-isomers it will have?
1 6
2 9
3 3
4 8
Explanation:
Number of chiral centre(n) $=3$ $\therefore$ Number of stereoisomer $=2^{\mathrm{n}}=2^{3}=8$
GUJCET-2008
GENERAL ORGANIC CHEMISTRY
231981
Metamerism can be exhibited by the compounds containing
1 Monovalent functional group
2 Bivalent functional group
3 Double bond
4 Triple bond
Explanation:
(B): Metamers are the isomers having the same molecular formula but **different alkyl group on two sides of functional group.** Compounds having bivalent functional group (like $\mathrm{C}=\mathrm{O},-\mathrm{O}-,-\mathrm{S}-$ etc) with atleast 4 carbon atoms (in case of ether and thioether) or atleast 5 carbon atoms (in case of ketones) exhibit metamerism. Hence, $\mathrm{C}_{2} \mathrm{H}_{5}-\mathrm{S}-\mathrm{C}_{2} \mathrm{H}_{5}$ will show metamerism.
(B) :Maleic acid and fumaric acid are geometrical isomers.
BITSAT-2020]
GENERAL ORGANIC CHEMISTRY
231978
Ammonia gas does not evolve from the complex $\mathrm{FeCl}_{3} .4 \mathrm{NH}_{3}$ but it gives white precipitate with aqueous solution of $\mathrm{AgNO}_{3}$. Co-ordination number of central metal ion in above complex is six. Give IUPAC name of the complex.
1 Ammonium trichloro triammine ferrum (III).
2 Tetra ammine ferrum (III) chloride.
3 Dichloro tetra ammine ferrate (II) chloride.
4 Dichloro tetra ammine ferrum (III) chloride.
Explanation:
(D): $\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right] \mathrm{Cl}+\mathrm{AgNO}_{3} \rightarrow\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right] \mathrm{NH}_{3}+\mathrm{AgCl} \uparrow$ The IUPAC name of the $\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]$ is Dichloro tetra ammine ferrum (III) chloride.
GUJCET-2011
GENERAL ORGANIC CHEMISTRY
231979
The number of racemic mixture obtained by optical isomers of 2,3-dihydroxy butanal is/are:
1 Three
2 Two
3 One
4 Zero
Explanation:
The chemical structure of 2,3dihydroxybutanal is given as: A mixture of equal quantities of two enantiomers, or substances that have dissymmetric molecular structures that are mirror images of one another. The compound contains the two chiral centre. Hence, 2 racemic mixtures are obtained.
GUJCET-2007
GENERAL ORGANIC CHEMISTRY
231980
A molecule having 3 different chiral carbon atoms, how many stereo-isomers it will have?
1 6
2 9
3 3
4 8
Explanation:
Number of chiral centre(n) $=3$ $\therefore$ Number of stereoisomer $=2^{\mathrm{n}}=2^{3}=8$
GUJCET-2008
GENERAL ORGANIC CHEMISTRY
231981
Metamerism can be exhibited by the compounds containing
1 Monovalent functional group
2 Bivalent functional group
3 Double bond
4 Triple bond
Explanation:
(B): Metamers are the isomers having the same molecular formula but **different alkyl group on two sides of functional group.** Compounds having bivalent functional group (like $\mathrm{C}=\mathrm{O},-\mathrm{O}-,-\mathrm{S}-$ etc) with atleast 4 carbon atoms (in case of ether and thioether) or atleast 5 carbon atoms (in case of ketones) exhibit metamerism. Hence, $\mathrm{C}_{2} \mathrm{H}_{5}-\mathrm{S}-\mathrm{C}_{2} \mathrm{H}_{5}$ will show metamerism.
(B) :Maleic acid and fumaric acid are geometrical isomers.
BITSAT-2020]
GENERAL ORGANIC CHEMISTRY
231978
Ammonia gas does not evolve from the complex $\mathrm{FeCl}_{3} .4 \mathrm{NH}_{3}$ but it gives white precipitate with aqueous solution of $\mathrm{AgNO}_{3}$. Co-ordination number of central metal ion in above complex is six. Give IUPAC name of the complex.
1 Ammonium trichloro triammine ferrum (III).
2 Tetra ammine ferrum (III) chloride.
3 Dichloro tetra ammine ferrate (II) chloride.
4 Dichloro tetra ammine ferrum (III) chloride.
Explanation:
(D): $\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right] \mathrm{Cl}+\mathrm{AgNO}_{3} \rightarrow\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right] \mathrm{NH}_{3}+\mathrm{AgCl} \uparrow$ The IUPAC name of the $\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]$ is Dichloro tetra ammine ferrum (III) chloride.
GUJCET-2011
GENERAL ORGANIC CHEMISTRY
231979
The number of racemic mixture obtained by optical isomers of 2,3-dihydroxy butanal is/are:
1 Three
2 Two
3 One
4 Zero
Explanation:
The chemical structure of 2,3dihydroxybutanal is given as: A mixture of equal quantities of two enantiomers, or substances that have dissymmetric molecular structures that are mirror images of one another. The compound contains the two chiral centre. Hence, 2 racemic mixtures are obtained.
GUJCET-2007
GENERAL ORGANIC CHEMISTRY
231980
A molecule having 3 different chiral carbon atoms, how many stereo-isomers it will have?
1 6
2 9
3 3
4 8
Explanation:
Number of chiral centre(n) $=3$ $\therefore$ Number of stereoisomer $=2^{\mathrm{n}}=2^{3}=8$
GUJCET-2008
GENERAL ORGANIC CHEMISTRY
231981
Metamerism can be exhibited by the compounds containing
1 Monovalent functional group
2 Bivalent functional group
3 Double bond
4 Triple bond
Explanation:
(B): Metamers are the isomers having the same molecular formula but **different alkyl group on two sides of functional group.** Compounds having bivalent functional group (like $\mathrm{C}=\mathrm{O},-\mathrm{O}-,-\mathrm{S}-$ etc) with atleast 4 carbon atoms (in case of ether and thioether) or atleast 5 carbon atoms (in case of ketones) exhibit metamerism. Hence, $\mathrm{C}_{2} \mathrm{H}_{5}-\mathrm{S}-\mathrm{C}_{2} \mathrm{H}_{5}$ will show metamerism.
