Bio Chemistry Questions And Answers

1⟩ Give the example for electrophilic substitution reaction.

The species, which accepts the electrons, are called Electrophilles (or) Electrophilic reagents.

When the atom (or) group of atoms present in the organic compound is replaced by another atom (or) group of atoms (electrophilic) is called electrophilic substitution reaction.

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2⟩ What are the favorable conditions for formation of Anions?

► High Electron affinity

► Small size

Less charge of an atoms form anion more easily

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3⟩ What is addition reaction?

When atoms (or) group of atoms are added, to form more saturated compound it is called addition reaction.

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4⟩ How do you define free radical addition reaction? Give an example.

When unsaturated compounds undergo addition reactions with free radicals,

it is called free radical addition reaction.

Ex; CH3-CH = CH2+HBr-----------> CH3-CH2-CH2Br

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5⟩ What is nucleophilic addition reaction?

When the attacking species during the addition reaction is Nucleophilic, it is nucleophilic addition reaction. Ex; Acetaldehyde cynohydrin

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6⟩ What are the favorable conditions for formation of cat ions?

► Low Ionisational potential

► Lesser Charge

► More atomic size of atoms forms cations easily

► Ions having Inert gases configuration formed easily

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7⟩ What is electrophilic addition reaction?

When the attacking species during the addition reaction is Electrophile, it is called electrophilic addition reaction. Ex; (+) (-) (+) (-) (+) (-)

CH2Br-CH2BràH2C-CH2+BrBr-àH2C=CH2+Br2-

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8⟩ What does one Debye equals?

10-18 e.s.u – Cm

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9⟩ Which theory explains the paramagnetic nature of oxygen? Who proposed it?

Molecular orbital theory, proposed by Hunds and Mulliken

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10⟩ Define co-ordination covalent bond.

Co-ordination covalent bond is formed by the mutual sharing of pair of electrons between two atoms contributed by only one of the combining atoms.

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11⟩ Covalent bond is directional therefore which covalent property is shown?

Space Isomerism

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12⟩ What is dipole?

In polar covalent molecule, one atom gets positive charge and the other one gets negative charge hence called dipole.

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13⟩ Define polar covalent bond

The covalent bond formed by the unequal sharing of electrons between the two atoms is called polar covalent bond.

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14⟩ Among sigma and Pi bonds which is the stronger one

Sigma bond is Stronger than pi bond

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

Double bond = 1 Sigma bond and one Pi bond

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16⟩ Ionic compound does not show the property of space isomerism, Give the reason?

Ionic bond is Electrostatic. It is non directional, so Ionic compounds does not show the property of Space Isomerism

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17⟩ What is the structure of cscl and give the co-ordination number of Cscl?

The structure of cscl is Body Centered Cubic and the Co- ordination number of CsCl is 8

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18⟩ What is structure of Nacl and give the co-ordination number of Nacl?

The structure of Nacl is face centered Cubic and Co- ordination number of Nacl is 6

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19⟩ What is Co-ordination number?

The number of appositively charged ions surrounded a particular ion in an ionic crystal lattice is called co- ordination number

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20⟩ Define limiting radius.

The ratio between the radius of cation and the radius of anion is called Limiting radius.

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Bio Chemistry

Home Medical Bio Chemistry

237 Bio Chemistry Questions And Answers

1⟩ Give the example for electrophilic substitution reaction.

2⟩ What are the favorable conditions for formation of Anions?

3⟩ What is addition reaction?

4⟩ How do you define free radical addition reaction? Give an example.

5⟩ What is nucleophilic addition reaction?

6⟩ What are the favorable conditions for formation of cat ions?

7⟩ What is electrophilic addition reaction?

8⟩ What does one Debye equals?

9⟩ Which theory explains the paramagnetic nature of oxygen? Who proposed it?

10⟩ Define co-ordination covalent bond.

11⟩ Covalent bond is directional therefore which covalent property is shown?

12⟩ What is dipole?

13⟩ Define polar covalent bond

14⟩ Among sigma and Pi bonds which is the stronger one

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

16⟩ Ionic compound does not show the property of space isomerism, Give the reason?

17⟩ What is the structure of cscl and give the co-ordination number of Cscl?

18⟩ What is structure of Nacl and give the co-ordination number of Nacl?

19⟩ What is Co-ordination number?

20⟩ Define limiting radius.

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Bio Chemistry

Home Medical Bio Chemistry

237 Bio Chemistry Questions And Answers

1⟩ Give the example for electrophilic substitution reaction.

2⟩ What are the favorable conditions for formation of Anions?

3⟩ What is addition reaction?

4⟩ How do you define free radical addition reaction? Give an example.

5⟩ What is nucleophilic addition reaction?

6⟩ What are the favorable conditions for formation of cat ions?

7⟩ What is electrophilic addition reaction?

8⟩ What does one Debye equals?

9⟩ Which theory explains the paramagnetic nature of oxygen? Who proposed it?

10⟩ Define co-ordination covalent bond.

11⟩ Covalent bond is directional therefore which covalent property is shown?

12⟩ What is dipole?

13⟩ Define polar covalent bond

14⟩ Among sigma and Pi bonds which is the stronger one

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

16⟩ Ionic compound does not show the property of space isomerism, Give the reason?

17⟩ What is the structure of cscl and give the co-ordination number of Cscl?

18⟩ What is structure of Nacl and give the co-ordination number of Nacl?

19⟩ What is Co-ordination number?

20⟩ Define limiting radius.

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