2-Butanol is optically active because it contains : (a) an asymmetric carbon (b) a plane of symmetry (c) a hydroxyl group(d) a centre of symmetry

2-Butanol is optically active because it contains :
(a) an asymmetric carbon
(b) a plane of symmetry
(c) a hydroxyl group
(d) a centre of symmetry
by

1 Answer

Answer :

(a) an asymmetric carbon
by

Related questions

Which of the following is a true statement? (a) All chiral molecules possess a plane of symmetry. (b) All achiral molecules are meso. (c) All molecules which possess a single asymmetric center of the S configuration are levorotatory. (d) A mixture of achiral compounds will be optically inactive

Description : Which of the following is a true statement? (a) All chiral molecules possess a plane of symmetry. (b) All achiral molecules are meso. (c) All molecules which possess a single asymmetric center of the S configuration are levorotatory. (d) A mixture of achiral compounds will be optically inactive

Last Answer : A mixture of achiral compounds will be optically inactive

An optically active compound (a) must contain atleast four carbons (b) when in solution rotate the plane of polarized light (c) must always contain an asymmetric carbon atom (d) in solution always give a negative reading in polarimeter

Description : An optically active compound (a) must contain atleast four carbons (b) when in solution rotate the plane of polarized light (c) must always contain an asymmetric carbon atom (d) in solution always give a negative reading in polarimeter

Last Answer : when in solution rotate the plane of polarized light

A meso compound : (a) is an achiral molecule which contains chiral carbons (b) contains a plane of symmetry or a centre of symmetry (c) is optically inactive (d) is characterized by all of the above

Description : A meso compound : (a) is an achiral molecule which contains chiral carbons (b) contains a plane of symmetry or a centre of symmetry (c) is optically inactive (d) is characterized by all of the above

Last Answer : ) is characterized by all of the above

A molecule is said to be chiral (a) if it contains plane of symmetry (b) if it contains centre of symmetry (c) if it cannot be superimposed on its mirror image (d) if it can be superimposed on its mirror image

Description : A molecule is said to be chiral (a) if it contains plane of symmetry (b) if it contains centre of symmetry (c) if it cannot be superimposed on its mirror image (d) if it can be superimposed on its mirror image

Last Answer : if it cannot be superimposed on its mirror image

Which of the following is optically inactive? a. equimolar mixture of enantiomers b. Solution of pure enantiomer c. Mixture of enantiomers with enantiomeric excess of one isomer d. Molecule without symmetry elements

Description : Which of the following is optically inactive? a. equimolar mixture of enantiomers b. Solution of pure enantiomer c. Mixture of enantiomers with enantiomeric excess of one isomer d. Molecule without symmetry elements

Last Answer : a. equimolar mixture of enantiomers

Optically active compounds are capable of (A) Different reactions (B) Rotating plane of polarized light (C) Showing same chemical properties (D) None of these

Description : Optically active compounds are capable of (A) Different reactions (B) Rotating plane of polarized light (C) Showing same chemical properties (D) None of these

Last Answer : Answer : B

The designation D or Lbefore the name of a monosaccharide (a) indicates the direction of rotation of polarized light. (b) indicates the length of the carbon chain in the carbohydrate. (c) indicates the position of the OH group on the carbon next to the primary alcohol group. (d) indicates the position of the asymmetric carbon atoms in the carbohydrate.

Description : The designation D or Lbefore the name of a monosaccharide (a) indicates the direction of rotation of polarized light. (b) indicates the length of the carbon chain in the carbohydrate. (c) ... the primary alcohol group. (d) indicates the position of the asymmetric carbon atoms in the carbohydrate.

Last Answer : indicates the position of the OH group on the carbon next to the primary alcohol group.

Which of the following statement is correct about membrane cholesterol? (A) The hydroxyl group is located near the centre of the lipid layer (B) Most of the cholesterol is in the form of a cholesterol ester (C) The steroid nucleus form forms a rigid, planar structure (D) The hydrocarbon chain of cholesterol projects into the extracellular fluid

Description : Which of the following statement is correct about membrane cholesterol? (A) The hydroxyl group is located near the centre of the lipid layer (B) Most of the cholesterol is in the form ... forms a rigid, planar structure (D) The hydrocarbon chain of cholesterol projects into the extracellular fluid

Last Answer : C

Which of the following statement is correct about membrane cholesterol? (A) The hydroxyl group is located near the centre of the lipid layer (B) Most of the cholesterol is in the form of a cholesterol ester (C) The steroid nucleus form forms a rigid, planar Structure (D) The hydrocarbon chain of cholesterol projects into the extracellular fluid

Description : Which of the following statement is correct about membrane cholesterol? (A) The hydroxyl group is located near the centre of the lipid layer (B) Most of the cholesterol is in the form ... forms a rigid, planar Structure (D) The hydrocarbon chain of cholesterol projects into the extracellular fluid

Last Answer : (C) The steroid nucleus form forms a rigid, planar Structure

Consider (R)- and (S)-2-butanol. Which physical property distinguishes the two compounds? (a) melting point(b) solubility in common solvents(c) Rotation of plane-polarized light(d) Infrared spectrum

Description : Consider (R)- and (S)-2-butanol. Which physical property distinguishes the two compounds? (a) melting point (b) solubility in common solvents (c) Rotation of plane-polarized light (d) Infrared spectrum

Last Answer : Rotation of plane-polarized light

Find plane of symmerty, centre of symmerty and axis of symmetry (if possible) in the following molecules.

Description : Find plane of symmerty, centre of symmerty and axis of symmetry (if possible) in the following molecules.

Last Answer : Find plane of symmerty, centre of symmerty and axis of symmetry (if possible) in the following molecules.

Find plane of symmetry and centre of symmetry (if possible) in the following compounds.

Description : Find plane of symmetry and centre of symmetry (if possible) in the following compounds.

Last Answer : Find plane of symmetry and centre of symmetry (if possible) in the following compounds.

Phenol is an ortho-para director because the hydroxyl group : (a) donates electrons that increase electron density at ortho and para positions favoring nucleophilic attack. (b) donates electrons that increase electron density at ortho and para positions favoring electrophilic attack. (c) donates electrons to the ortho and para positions and attracts electrons away from meta positions favoring nucleophilic attack of the ring. (d) donates electrons to the ortho and para positions and attracts electrons away from meta positions favoring electrophilic attack on the ring.

Description : Phenol is an ortho-para director because the hydroxyl group : (a) donates electrons that increase electron density at ortho and para positions favoring nucleophilic attack. (b) donates ... para positions and attracts electrons away from meta positions favoring electrophilic attack on the ring.

Last Answer : donates electrons that increase electron density at ortho and para positions favoring electrophilic attack.

Statement-I: Optically active 2-idoibutane on treatment with `NaI` in acetone undergoes racemisation. Because Statement-II: Repeated Walden inversions

Description : Statement-I: Optically active 2-idoibutane on treatment with `NaI` in acetone undergoes racemisation. Because Statement-II: Repeated Walden inversions

Last Answer : Statement-I: Optically active 2-idoibutane on treatment with `NaI` in acetone undergoes racemisation. ... Statement-1 is false, Statement-2 is true

Folate as a coenzyme is involved in the transfer and utilization of (A) Amino group (B) Hydroxyl group (C) Single carbon moiety (D) Amido group

Description : Folate as a coenzyme is involved in the transfer and utilization of (A) Amino group (B) Hydroxyl group (C) Single carbon moiety (D) Amido group

Last Answer : Answer : C

Which of the following statements is false about glyceraldehyde? (a) Its IUPAC name is 1,2-dihydroxypropanal (b) It is isomeric with 1,3-dihydroxypropanone (c) It is optically active (d) It shows mutarotation

Description : Which of the following statements is false about glyceraldehyde? (a) Its IUPAC name is 1,2-dihydroxypropanal (b) It is isomeric with 1,3-dihydroxypropanone (c) It is optically active (d) It shows mutarotation

Last Answer : It shows mutarotation

On reduction with LiAlH4, which of the following compounds could yield an optically active compound? (a) Propanal (b) Propanone (c) Butanal (d) Butanone

Description : On reduction with LiAlH4, which of the following compounds could yield an optically active compound? (a) Propanal (b) Propanone (c) Butanal (d) Butanone

Last Answer : Butanone

Which of the following compounds will be optically active? (a) Succinic acid (b) meso-Tartaric acid (d) Lactic acid (d) Chloroacetic acid

Description : Which of the following compounds will be optically active? (a) Succinic acid (b) meso-Tartaric acid (d) Lactic acid (d) Chloroacetic acid

Last Answer : Lactic acid

Which of the following compounds will be optically active? (a) Propanoic acid (b) 3-Chloropropanoic acid (c) 2-Chloropropanoic acid (d) 3-Chloropropene

Description : Which of the following compounds will be optically active? (a) Propanoic acid (b) 3-Chloropropanoic acid (c) 2-Chloropropanoic acid (d) 3-Chloropropene

Last Answer : 2-Chloropropanoic acid

meso-Tartaric acid is (a) sometimes optically active (b) always optically active (c) sometimes optically inactive (d) always optically inactive

Description : meso-Tartaric acid is (a) sometimes optically active (b) always optically active (c) sometimes optically inactive (d) always optically inactive

Last Answer : always optically inactive

Enantiomers have which of the following characteristics? (a) rotate ordinary light (b) have the same melting point (c) are superimposable mirror images (d) react with optically active molecules at the same rate

Description : Enantiomers have which of the following characteristics? (a) rotate ordinary light (b) have the same melting point (c) are superimposable mirror images (d) react with optically active molecules at the same rate

Last Answer : have the same melting point

The number of asymmetric carbon atoms in the α-D-glucopyranose molecule is : (a) 2 (b) 3 (c) 4 (d) 5

Description : The number of asymmetric carbon atoms in the α-D-glucopyranose molecule is : (a) 2 (b) 3 (c) 4 (d) 5

Last Answer : 5

What is the possible number of optical isomers for a compound containing 2 dissimilar asymmetric carbon atoms? (a) 2 (b) 4 (c) 6 (d) 8

Description : What is the possible number of optical isomers for a compound containing 2 dissimilar asymmetric carbon atoms? (a) 2 (b) 4 (c) 6 (d) 8

Last Answer : 4

What is the possible number of optical isomers for a compound containing n dissimilar asymmetric carbon atoms? (a) n2 (b) 2n (c) n + 1(d) n + 2

Description : What is the possible number of optical isomers for a compound containing n dissimilar asymmetric carbon atoms? (a) n2 (b) 2n (c) n + 1 (d) n + 2

Last Answer : 2n

The greater acidity of carboxylic acids compared to alcohols arises primarily from : (a) the electron-donating effect of the hydroxyl group (b) the electron-withdrawing effect of the carboxyl oxygen (c) the acidity of α-hydrogens of carboxylic acids (d) the resonance stability associated with the carboxylate ion

Description : The greater acidity of carboxylic acids compared to alcohols arises primarily from : (a) the electron-donating effect of the hydroxyl group (b) the electron-withdrawing effect of the carboxyl ... of α-hydrogens of carboxylic acids (d) the resonance stability associated with the carboxylate ion

Last Answer : the resonance stability associated with the carboxylate ion

Name the compound formed when an hydroxyl group is attached to a phenyl group.

Description : Name the compound formed when an hydroxyl group is attached to a phenyl group.

Last Answer : ANSWER: PHENOL

An optically plane surface reflects a beam of light – (1) as a parallel beam in one direction (2) as diffused beams in all d rections (3) as parallel beams in all direactions (4) as a diffused beam in one direction

Description : An optically plane surface reflects a beam of light – (1) as a parallel beam in one direction (2) as diffused beams in all d rections (3) as parallel beams in all direactions (4) as a diffused beam in one direction

Last Answer : (1) as a parallel beam in one direction Explanation: An optically plane surface reflects a beam of light as a parallel beam in one direction. The set of incident rays are reflected as a set ... its reflecting surface is smooth. This type of reflection of a set of rays is called Specular Reflection.

An optically plane surface reflects a beam of light (1) as a parallel beam in one direction (2) as diffused beams in all directions (3) as parallel beams in all directions (4) as a diffused beam in one direction

Description : An optically plane surface reflects a beam of light (1) as a parallel beam in one direction (2) as diffused beams in all directions (3) as parallel beams in all directions (4) as a diffused beam in one direction

Last Answer : as a parallel beam in one direction

Total number of optically active stereoisomers of `CH_(3)-underset(overset(|)(CI))(C)H-CH=CH-underset(overset(|)(CI))(C)H-CH_(3)` are :

Description : Total number of optically active stereoisomers of `CH_(3)-underset(overset(|)(CI))(C)H-CH=CH-underset(overset(|)(CI))(C)H-CH_(3)` are :

Last Answer : Total number of optically active stereoisomers of `CH_(3)-underset(overset(|)(CI))(C)H-CH=CH-underset(overset(|)(CI))(C)H-CH_(3)` are :

Total number of optically active stereoisomers of tartaric acid is

Description : Total number of optically active stereoisomers of tartaric acid is

Last Answer : Total number of optically active stereoisomers of tartaric acid is A. 2 B. 4 C. 3 D. 0

Which of the following amine is optically active?1

Description : Which of the following amine is optically active?1

Last Answer : Which of the following amine is optically active?1 A. `CH_(3)NH_(2)` B. `CH_(3)NHC_(2)H_(5)` C. D. sec-Butylamine

Optically active amine having molecular formula `C_(5)H_(13)N` on reaction with `NaNO_(2)+HCI` produces, `3^(@)` optically inative alcohol. Find out s

Description : Optically active amine having molecular formula `C_(5)H_(13)N` on reaction with `NaNO_(2)+HCI` produces, `3^(@)` optically inative alcohol. Find out s

Last Answer : Optically active amine having molecular formula `C_(5)H_(13)N` on reaction with `NaNO_(2)+HCI` produces, ` ... out structures of amines: A. B. C. D.

All the following amino acids are optically active except (A) Tryptophane (B) Phenylalanine (C) Valine (D) Glycine

Description : All the following amino acids are optically active except (A) Tryptophane (B) Phenylalanine (C) Valine (D) Glycine

Last Answer : Answer : D

The reference compound for absolute configuration of optically active compound is (A) Alanine (B) Lactic acid (C) Glyceraldehyde (D) Dihydroxy acetone

Description : The reference compound for absolute configuration of optically active compound is (A) Alanine (B) Lactic acid (C) Glyceraldehyde (D) Dihydroxy acetone

Last Answer : Answer : C

The amino acid which is not optically active is (A) Alanine (B) Glycine (C) Glutamine (D) Lysine

Description : The amino acid which is not optically active is (A) Alanine (B) Glycine (C) Glutamine (D) Lysine

Last Answer : Answer : B

All amino acids are optically active except (A) Glycine (B) Serine (C) Threonine (D) Tryptophan

Description : All amino acids are optically active except (A) Glycine (B) Serine (C) Threonine (D) Tryptophan

Last Answer : Answer : A

Petroleum (A) Is optically active (B) Constitutes mainly of olefins (C) Does not contain asphalt (D) Does not contain aromatics

Description : Petroleum (A) Is optically active (B) Constitutes mainly of olefins (C) Does not contain asphalt (D) Does not contain aromatics

Last Answer : (A) Is optically active

X-ray crystallographic analysis of an optically active compound determines its (A) Optical rotatory dispersive power (B) Absolute configuration (C) Relative configuration (D) Optical purity

Description : X-ray crystallographic analysis of an optically active compound determines its (A) Optical rotatory dispersive power (B) Absolute configuration (C) Relative configuration (D) Optical purity

Last Answer : (B) Absolute configuration

As `S_(N^(2))` reaction at an asymmetric carbon of a compound always gives:

Description : As `S_(N^(2))` reaction at an asymmetric carbon of a compound always gives:

Last Answer : As `S_(N^(2))` reaction at an asymmetric carbon of a compound always gives: A. an ... C. a mixture of diastereomers D. a single stereoisomer

All α-amino acids have one asymmetric carbon atom except (A) Arginine (B) Glycine (C) Aspartic acid (D) Histidine

Description : All α-amino acids have one asymmetric carbon atom except (A) Arginine (B) Glycine (C) Aspartic acid (D) Histidine

Last Answer : Answer : B

All amino acids have one asymmetric carbon atom, except (A) Arginine (B) Aspargine (C) Histidine (D) Glycine

Description : All amino acids have one asymmetric carbon atom, except (A) Arginine (B) Aspargine (C) Histidine (D) Glycine

Last Answer : Answer : D

The carbon atom wh ich becomes asymmetric when the straight chain form of monosaccharide changes into ring form is known as CARBOHYDRATES AND CARBOHYDRATE METABOLISM 9 (A) Anomeric carbon atom (B) Epimeric carbon atom (C) Isomeric carbon atom (D) None of these

Description : The carbon atom wh ich becomes asymmetric when the straight chain form of monosaccharide changes into ring form is known as CARBOHYDRATES AND CARBOHYDRATE METABOLISM 9 (A) Anomeric carbon atom (B) Epimeric carbon atom (C) Isomeric carbon atom (D) None of these

Last Answer : A

Reimer-Tiemann reaction introduces an aldehyde group on to the aromatic ring of phenol, ortho to the hydroxyl group. This reacrtion involves electroph

Description : Reimer-Tiemann reaction introduces an aldehyde group on to the aromatic ring of phenol, ortho to the hydroxyl group. This reacrtion involves electroph

Last Answer : Reimer-Tiemann reaction introduces an aldehyde group on to the aromatic ring of phenol, ortho to the hydroxyl group. ... (I) is: A. B. C. D.

Reimer-Tiemann reaction introduces an aldehyde group on to the aromatic ring of phenol, ortho to the hydroxyl group. This reacrtion involves electroph

Description : Reimer-Tiemann reaction introduces an aldehyde group on to the aromatic ring of phenol, ortho to the hydroxyl group. This reacrtion involves electroph

Last Answer : Reimer-Tiemann reaction introduces an aldehyde group on to the aromatic ring of phenol, ortho to the hydroxyl group. This ... (2)` D. `.^(*)C Cl_(3)`

Reimer-Tiemann reaction introduces an aldehyde group on to the aromatic ring of phenol, ortho to the hydroxyl group. This reacrtion involves electroph

Description : Reimer-Tiemann reaction introduces an aldehyde group on to the aromatic ring of phenol, ortho to the hydroxyl group. This reacrtion involves electroph

Last Answer : Reimer-Tiemann reaction introduces an aldehyde group on to the aromatic ring of phenol, ortho to the hydroxyl group. ... ` D. aq. `NaOH + C Cl_(4)`

The amino acid containing hydroxyl group: (A) Alanine (B) Isoleucine (C) Arginine (D) Threonine

Description : The amino acid containing hydroxyl group: (A) Alanine (B) Isoleucine (C) Arginine (D) Threonine

Last Answer : Answer : D

Reducing ability of carbohydrates is due to (A) Carboxyl group (B) Hydroxyl group (C) Enediol formation (D) Ring structure

Description : Reducing ability of carbohydrates is due to (A) Carboxyl group (B) Hydroxyl group (C) Enediol formation (D) Ring structure

Last Answer : A

A functional group designated—COOH is known as a/an a. Carboxyl. b. Carbonyl. c. Amino. d. Hydroxyl.

Description : A functional group designated—COOH is known as a/an a. Carboxyl. b. Carbonyl. c. Amino. d. Hydroxyl.

Last Answer : a. Carboxyl.

In which type of cardiomyopathy does the heart muscle actually increase in size and mass weight, especially along the septum? a) Hypertrophic Because of the structural changes, hypertrophic cardiomyopathy had also been called idiopathic hypertrophic subaortic stenosis (IHSS) or asymmetric septal hypertrophy (ASH).

Description : In which type of cardiomyopathy does the heart muscle actually increase in size and mass weight, especially along the septum? a) Hypertrophic Because of the structural changes, hypertrophic ... of the right ventricle is progressively infiltrated and replaced by fibrous scar and adipose tissue

Last Answer : a) Hypertrophic Because of the structural changes, hypertrophic cardiomyopathy had also been called idiopathic hypertrophic subaortic stenosis (IHSS) or asymmetric septal hypertrophy (ASH).

Wood Spirit is which of the following? (1) Ethyl Alcohol (2) Propanol (3) Methyl Alcohol (4) Butanol

Description : Wood Spirit is which of the following? (1) Ethyl Alcohol (2) Propanol (3) Methyl Alcohol (4) Butanol

Last Answer : (3) Methyl Alcohol Explanation: Wood spirit (countable and uncountable, plural wood spirits) (countable) A dryad or other spiritual being associated with forests, woods, or trees. (Uncountable, often the wood spirit) Methyl Alcohol, a type of alcohol.