In given compounds how many have Z configuration along double bond ?

In given compounds how many have Z configuration along double bond ?
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In given compounds how many have Z configuration along double bond ?
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Which of the following compounds contains a double bond? w) butene x) acetylene y) butane z) propane

Description : Which of the following compounds contains a double bond? w) butene x) acetylene y) butane z) propane

Last Answer : ANSWER: W -- BUTENE 

Assign the configuration E/Z to the following compounds.

Description : Assign the configuration E/Z to the following compounds.

Last Answer : Assign the configuration E/Z to the following compounds.

Classify the following compounds containing double bond and triple bond – Ethyne, benzene, Butyne, pentene

Description : Classify the following compounds containing double bond and triple bond – Ethyne, benzene, Butyne, pentene

Last Answer : Double bond: Benzene, pentene Triple bond: Ethyne, Butyne

Which statement about the structure of benzene is not true? (a) The two Kekule structures of benzene are in equilibrium. (b) The carbon-carbon bond lengths in benzene are greater than the carbon-carbon double bonds in aliphatic compounds. (c) The molecular geometry of benzene is best described as planar. (d) The stability of benzene ring is much greater than the stability of 1,3,5- cycloheptatriene

Description : Which statement about the structure of benzene is not true? (a) The two Kekule structures of benzene are in equilibrium. (b) The carbon-carbon bond lengths in benzene are greater than the carbon- ... (d) The stability of benzene ring is much greater than the stability of 1,3,5- cycloheptatriene

Last Answer : The two Kekule structures of benzene are in equilibrium

Which of the following four compounds would have t most ionic bond? w) CH4 x) LiF y) CsF z) N2

Description : Which of the following four compounds would have t most ionic bond? w) CH4 x) LiF y) CsF z) N2

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In 2-butene, which of the following bonds prevents the atoms at each end of the bond from rotating with respect to each other. Is it an: w) ionic bond x) sigma bond y) strong bond z) double bond

Description : In 2-butene, which of the following bonds prevents the atoms at each end of the bond from rotating with respect to each other. Is it an: w) ionic bond x) sigma bond y) strong bond z) double bond

Last Answer : ANSWER: Z -- DOUBLE BOND

The electronic configuration of three elements X, Y and Z are X-2,8; Y-2,8,7 and Z-2,8,2‘Which of the given is correct. a) X is a metal b) Y is a metal c) Zis a non-metal d) Y is a non-metal and Z is a metal

Description : The electronic configuration of three elements X, Y and Z are X-2,8; Y-2,8,7 and Z-2,8,2‘Which of the given is correct. a) X is a metal b) Y is a metal c) Zis a non-metal d) Y is a non-metal and Z is a metal

Last Answer : d) Y is a non-metal and Z is a metal

The bond order for a species with the configuration `sigma1s^(2)sigma^(***)1s^(2)sigma2s^(2)sigma^(**)2s^(2)sigmapx^(1)` will be

Description : The bond order for a species with the configuration `sigma1s^(2)sigma^(***)1s^(2)sigma2s^(2)sigma^(**)2s^(2)sigmapx^(1)` will be

Last Answer : The bond order for a species with the configuration `sigma1s^(2)sigma^(***)1s^(2)sigma2s^(2)sigma^(**)2s^(2)sigmapx ... 1 B. `1//2` C. zero D. `3//2`

For the correct assignment of electronic configuration of a complex, the valence bond theory often requires the measurement of

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What happens to an atom of fluorine (F) when it forms an ionic bond in which it has the same electron configuration as the noble gas neon?

Description : What happens to an atom of fluorine (F) when it forms an ionic bond in which it has the same electron configuration as the noble gas neon?

Last Answer : It accepts one electron.

(3) the number of electrons orbiting around the nucleus Explanation: The chemical behavior of an atom is determined by the number of electrons on its outer shell. As for the chemical bonding properties of the atom, the electron configuration determines how it will bond, with what it will bond, and in what ratio atoms will bond to form the 20,000,000 different substances on Earth.

Description : (3) the number of electrons orbiting around the nucleus Explanation: The chemical behavior of an atom is determined by the number of electrons on its outer shell. As for the chemical bonding properties of ... , and in what ratio atoms will bond to form the 20,000,000 different substances on Earth.

Last Answer : Methyl phenyl ether can be obtained by reacting - (1) phenolate ions and methyl iodide (2) methoxide ions and bromobenzene (3) methanol and phenol (4) bromobenzene and methyl bromide

The R/S configuration of following compounds are:

Description : The R/S configuration of following compounds are:

Last Answer : The R/S configuration of following compounds are:

Find R/S configuration of following compounds.

Description : Find R/S configuration of following compounds.

Last Answer : Find R/S configuration of following compounds.

Compounds having the same structural formula but differing in spatial configuration are known as (A) Stereoisomers (B) Anomers (C) Optical isomers (D) Epimers

Description : Compounds having the same structural formula but differing in spatial configuration are known as (A) Stereoisomers (B) Anomers (C) Optical isomers (D) Epimers

Last Answer : A

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

Compounds having the same structural formula but differing in spatial configuration are known as (A) Stereoisomers (B) Anomers (C) Optical isomers (D) Epimers

Description : Compounds having the same structural formula but differing in spatial configuration are known as (A) Stereoisomers (B) Anomers (C) Optical isomers (D) Epimers

Last Answer : (A) Stereoisomers

Newman projection of Butane is given, C-2 is rotated by `120^(º)` along `C_(2)-C_(3)` bond in anticloclwise direction, the conformation formed is :

Description : Newman projection of Butane is given, C-2 is rotated by `120^(º)` along `C_(2)-C_(3)` bond in anticloclwise direction, the conformation formed is :

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Which of the following groups of elements have an OUTER ELECTRONIC configuration of S-2-P-2? w) halogens x) Nitrogen-Phosphorus Group y) Carbon-Silicon Group z) Boron-Aluminum Group

Description : Which of the following groups of elements have an OUTER ELECTRONIC configuration of S-2-P-2? w) halogens x) Nitrogen-Phosphorus Group y) Carbon-Silicon Group z) Boron-Aluminum Group

Last Answer : ANSWER: Y -- CARBON-SILICON GROUP

The elements that have an outer electron configuration ns2 (read: n - s - 2) are called: w) halogens x) transition metals y) alkaline earths z) noble gases

Description : The elements that have an outer electron configuration ns2 (read: n - s - 2) are called: w) halogens x) transition metals y) alkaline earths z) noble gases

Last Answer : ANSWER: Y -- ALKALINE EARTHS

The 1936 Nobel Prize in chemistry was awarded to Peter J.W. Debye for his studies of: w) kinetic energy of colliding particles x) electron configuration y) dipole moments z) conformations of cyclohexane

Description : The 1936 Nobel Prize in chemistry was awarded to Peter J.W. Debye for his studies of: w) kinetic energy of colliding particles x) electron configuration y) dipole moments z) conformations of cyclohexane

Last Answer : ANSWER: Y -- DIPOLE MOMENTS

The difference in the osmotic pressures of one molar solutions of different compounds in a given solvent at a given temperature results from? w) Different values for R x) Different values for Avogadro's number y) Ionization or dissociation z) None of the above

Description : The difference in the osmotic pressures of one molar solutions of different compounds in a given solvent at a given temperature results from? w) Different values for R x) Different values for Avogadro's number y) Ionization or dissociation z) None of the above

Last Answer : ANSWER: Y -- IONIZATION OR DISSOCIATION 

What is the name given to the non-superimposable mirror image forms of chiral compounds? w) cis-trans x) enantiomers y) functional isomers z) diasteriomers

Description : What is the name given to the non-superimposable mirror image forms of chiral compounds? w) cis-trans x) enantiomers y) functional isomers z) diasteriomers

Last Answer : ANSWER: X -- ENANTIOMERS

Which of the following compounds are dimerised due to the formation of 3 centre four electron bond-

Description : Which of the following compounds are dimerised due to the formation of 3 centre four electron bond-

Last Answer : Which of the following compounds are dimerised due to the formation of 3 centre four electron bond- A. `BH_(3)` B. ... 3)` C. `AIBr_(3)` D. `AlCl_(3)`

Which of the following compounds has ionic bond. `pi-`bond, co-ordinate bond and covalent bond:-

Description : Which of the following compounds has ionic bond. `pi-`bond, co-ordinate bond and covalent bond:-

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Which of the following compounds prossesses the `C-H` bonds with the lowest bond dissociation energy?

Description : Which of the following compounds prossesses the `C-H` bonds with the lowest bond dissociation energy?

Last Answer : Which of the following compounds prossesses the `C-H` bonds with the lowest bond dissociation energy? ... B. n-pentane C. Benzene D. Toluene

Which of the following compounds prossesses the `C-H` bonds with the lowest bond dissociation energy?

Description : Which of the following compounds prossesses the `C-H` bonds with the lowest bond dissociation energy?

Last Answer : Which of the following compounds prossesses the `C-H` bonds with the lowest bond dissociation energy? ... n-Pentane C. Toluene D. 2,2-Dimethylpropane

In which of the following compounds, the `C-Cl` bond ion-isation shall give most stable carbonium ion?

Description : In which of the following compounds, the `C-Cl` bond ion-isation shall give most stable carbonium ion?

Last Answer : In which of the following compounds, the `C-Cl` bond ion-isation shall give most stable carbonium ion? A. B. C. D.

What are three physical properties of ionic compounds that are associated with ionic bonds and relate them to bond strength?

Description : What are three physical properties of ionic compounds that are associated with ionic bonds and relate them to bond strength?

Last Answer : These are melting point, boiling point, hardness.

Why are covalent compounds poor conductors of electricity? (1) Due to the presence of charged particles. (2) Due to the absence of charged particles. (3) Due to the presence of a triple bond. (4) None of the above

Description : Why are covalent compounds poor conductors of electricity? (1) Due to the presence of charged particles. (2) Due to the absence of charged particles. (3) Due to the presence of a triple bond. (4) None of the above

Last Answer : (2) Due to the absence of charged particles. Explanation: In a covalent compound, electrons are shared between atoms. This leaves no free electrons and hence there and no charged particles. This leads to covalent compounds being poor conductors of electricity.

Which is the chemical bond found in or- ganic compounds?

Description : Which is the chemical bond found in or- ganic compounds?

Last Answer : Covalent bond

Which is the chemical bond found in or- ganic compounds?

Description : Which is the chemical bond found in or- ganic compounds?

Last Answer : Glycine

The nature of chemical bond present in organic compounds is

Description : The nature of chemical bond present in organic compounds is

Last Answer : covalent bond.

Addition of `HI` on the double bond of propene yields isopropyl iodide and not n-propyl iodide as the major product. This is because the addition proc

Description : Addition of `HI` on the double bond of propene yields isopropyl iodide and not n-propyl iodide as the major product. This is because the addition proc

Last Answer : Addition of `HI` on the double bond of propene yields isopropyl iodide and not n-propyl iodide as the ... D. none of the above is a correct statement

Assertion: The O - O bond lengths in ozone molecule are intermediate between single and double bonds. Reason: `O_(3)` molecule is a resonance hybrid.

Description : Assertion: The O - O bond lengths in ozone molecule are intermediate between single and double bonds. Reason: `O_(3)` molecule is a resonance hybrid.

Last Answer : Assertion: The O - O bond lengths in ozone molecule are intermediate between single and double bonds. ... I is not correct and Statement-II is correct

What The double bond between carbon atom and two oxygen atoms has two characteristics what are they?

Description : What The double bond between carbon atom and two oxygen atoms has two characteristics what are they?

Last Answer : Four valence electrons are shared.Valence electrons are shared between oxygen atoms.

In which of the following types of enzymes, water may be added to a C—C double bond without breaking the bond? (A) Hydrolase (B) Hydratase (C) Hydroxylase (D) Oxygenase

Description : In which of the following types of enzymes, water may be added to a C—C double bond without breaking the bond? (A) Hydrolase (B) Hydratase (C) Hydroxylase (D) Oxygenase

Last Answer : Answer : A

In which of the following types of enzyme water may be added to a C—C double bond without breaking the bond? (A) Hydrolase (B) Hydratase (C) Hydroxylase (D) Esterase

Description : In which of the following types of enzyme water may be added to a C—C double bond without breaking the bond? (A) Hydrolase (B) Hydratase (C) Hydroxylase (D) Esterase

Last Answer : Answer : B

The enzyme which can add water to a carbon-carbon double bond or remove water to create a double bond without breaking the bond is (A) Hydratase (B) Hydroxylase (C) Hydrolase (D) Esterase

Description : The enzyme which can add water to a carbon-carbon double bond or remove water to create a double bond without breaking the bond is (A) Hydratase (B) Hydroxylase (C) Hydrolase (D) Esterase

Last Answer : Answer : A

All active prostaglandins have atleast one double bond between positions: (A) 7 and 8 (B) 9 and 10 (C) 11 and 12 (D) 13 and 14 FATS AND FATTY ACID METABOLISM 95

Description : All active prostaglandins have atleast one double bond between positions: (A) 7 and 8 (B) 9 and 10 (C) 11 and 12 (D) 13 and 14 FATS AND FATTY ACID METABOLISM 95

Last Answer : Answer : A

∆9 indicates a double bond between carbon atoms of the fatty acids: (A) 8 and 9 (B) 9 and 10 (C) 9 and 11 (D) 9 and 12

Description : ∆9 indicates a double bond between carbon atoms of the fatty acids: (A) 8 and 9 (B) 9 and 10 (C) 9 and 11 (D) 9 and 12

Last Answer : Answer : B

Human desaturase enzyme system cannot introduce a double bond in a fatty acid beyond (A) Carbon 9 (B) Carbon 6 (C) Carbon 5 (D) Carbon 3

Description : Human desaturase enzyme system cannot introduce a double bond in a fatty acid beyond (A) Carbon 9 (B) Carbon 6 (C) Carbon 5 (D) Carbon 3

Last Answer : Answer : A

All active prostaglandins have at least one double bond between positions (A) 7 and 8 (B) 10 and 11 (C) 13 and 14 (D) 16 and 17

Description : All active prostaglandins have at least one double bond between positions (A) 7 and 8 (B) 10 and 11 (C) 13 and 14 (D) 16 and 17

Last Answer : Answer : A

In double bond, how many sigma and Pi bonds are present in it ?

Description : In double bond, how many sigma and Pi bonds are present in it ?

Last Answer : Double bond = 1 Sigma bond and one Pi bond Among sigma and Pi bonds which is the stronger one Sigma bond is Stronger than pi bond

A single covalent bond (a) Is formed by the transfer of two electrons (b) Exists between hydrogen and chlorine in an aqueous solution, of hydrochloric acid (c) Is longer than a double bond (d) Does not require energy to disrupt it unlike an ionic bond

Description : A single covalent bond (a) Is formed by the transfer of two electrons (b) Exists between hydrogen and chlorine in an aqueous solution, of hydrochloric acid (c) Is longer than a double bond (d) Does not require energy to disrupt it unlike an ionic bond

Last Answer : Ans:(c)

Hydrocarbon with double bond is?

Description : Hydrocarbon with double bond is?

Last Answer : Alkenes

What is meant by restricted rotation around of carbon-carbon double bond? What type of isomerism does it lead to?

Description : What is meant by restricted rotation around of carbon-carbon double bond? What type of isomerism does it lead to?

Last Answer : Ans. The carbon-carbon double bond in alkene contains one sigma bond and one pi-bond. The Pibond involves the overlapping of unhybridised p orbital of two carbon atom .The rotation around the ... , the free rotation around C=C double bond is restricted, which gives rise to Geometrical Isomerism.

The unsaturated hydrocarbons having double bond between carbon atom are

Description : The unsaturated hydrocarbons having double bond between carbon atom are

Last Answer : alkene.

When palmitoleic acid (16 C, 1 double bond) is completely oxidised, what is the net generation of ATP molecules?

Description : When palmitoleic acid (16 C, 1 double bond) is completely oxidised, what is the net generation of ATP molecules? 

Last Answer : 127.

How is double bond formed in alkenes?

Description : How is double bond formed in alkenes?

Last Answer : In alkenes, two hydrogen atoms are less when compared to the saturated hydrocarbons. The two of the carbon atoms in the molecule is joined together by two covalent bonds. Thus a double bond is formed.

Which enzyme will add water to a double bond, without breaking the bond?

Description : Which enzyme will add water to a double bond, without breaking the bond?

Last Answer : Hydratase.