NCERT Solution
Class 11
Chemistry
Organic Chemistry Some Basic Principles and Techniques
identify the reagents shown in bold in the followi...

Question:
Identify the reagents shown in bold in the following equations as nucleophiles or electrophiles:

(a) CH₃COOH + HO^- → CH₃COO^- + H₂O

(b) CH₃COCH₃ + C^-N → (CH₃)₂ C (CN) (OH)

(c) C₆H₅ + CH₃C⁺O → C₆H₅COCH₃

Answer:

Electrophiles are electron-deficient species and can receive an electron pair. On the other hand, nucleophiles are electron-rich species and can donate their electrons.

(a) CH₃COOH + HO^- → CH₃COO^- + H₂O

Here, HO^- acts as a nucleophile as it is an electron-rich species, i.e., it is a nucleus-seeking species.

(b) CH₃COCH₃ + C-N → (CH₃)₂ C (CN) (OH)

Here, C-N acts as a nucleophile as it is an electron-rich species, i.e., it is a nucleus-seeking species.

Here, CH₃C⁺O acts as an electrophile as it is an electron-deficient species.

1
0
0
Report?

Report a problem on Specifications:

Email id:

Comments

Next Question >

SELECT ex_no,question,question_no,id,chapter FROM question_mgmt as q WHERE courseId='2' AND subId='9' AND ex_no!=0 AND status=1 and id!=3125 ORDER BY views desc, last_viewed_on desc limit 0,10

Popular questions of class 11 Chemistry

The mass of an electron is 9.1 × 10^–31 kg. If its K.E. is 3.0 × 10^–25 J, calculate its wavelength.

Calculate the amount of carbon dioxide that could be produced when

(i) 1 mole of carbon is burnt in air.

(ii) 1 mole of carbon is burnt in 16 g of dioxygen.

(iii) 2 moles of carbon are burnt in 16 g of dioxygen.

Calculate the wavelength of an electron moving with a velocity of 2.05 × 10⁷ ms^–1.

Balance the following redox reactions by ion – electron method :

(a) MnO₄^–(aq) + I^–(aq) → MnO_{2 (s)} + I_2(s) (in basic medium)

(b) MnO₄ ^– (aq) + SO_{2 (g)}→ Mn²⁺ (aq) + HSO₄^– (aq) (in acidic solution)

(d) Cr₂O₇ ^2– + SO_2(g) → Cr³⁺ _(aq) + SO₄^2–(aq) (in acidic solution)

In a process, 701 J of heat is absorbed by a system and 394 J ofwork is done by the system. What is the change in internal energy for the process?

What will be the minimum pressure required to compress 500 dm³ of air at 1 bar to 200 dm³ at 30°C?

In a reaction A + B2 → AB2 Identify the limiting reagent, if any, in the following reaction mixtures.

(i) 300 atoms of A + 200 molecules of B

(ii) 2 mol A + 3 mol B

(iii) 100 atoms of A + 100 molecules of B

(iv) 5 mol A + 2.5 mol B

(v) 2.5 mol A + 5 mol B

At 0°C, the density of a certain oxide of a gas at 2 bar is same as that of dinitrogen at 5 bar. What is the molecular mass of the oxide?

Which one of the following will have largest number of atoms?

(i) 1 g Au (s)

(ii) 1 g Na (s)

(iii) 1 g Li (s)

(iv) 1 g of Cl2(g)

Density of a gas is found to be 5.46 g/dm³ at 27 °C at 2 bar pressure. What will be its density at STP?

SELECT ex_no,question,question_no,id,chapter FROM question_mgmt as q WHERE courseId='2' AND subId='9' AND ex_no!=0 AND status=1 and id!=3125 ORDER BY last_viewed_on desc limit 0,10

Recently Viewed Questions of Class 11 Chemistry

Chlorine is used to purify drinking water. Excess of chlorine is harmful. The excess of chlorine is removed by treating with sulphur dioxide. Present a balanced equation for this redox change taking place in water.

Discuss the chemistry of Lassaigne's test.

Discuss the pattern of variation in the oxidation states of
(i) B to Tl and (ii) C to Pb.

What is meant by 'demineralised' water and how can it be obtained?

Write IUPAC names of the products obtained by the ozonolysis of the following compounds:

(i) Pent-2-ene

(ii) 3,4-Dimethyl-hept-3-ene

(iii) 2-Ethylbut-1-ene

(iv) 1-Phenylbut-1-ene

Although both CO₂ and H₂O are triatomic molecules, the shape of H₂O molecule is bent while that of CO₂ is linear. Explain this on the basis of dipole moment.

Bromine monochloride, BrCl decomposes into bromine and chlorine and reaches the equilibrium:

2BrCl (g) ↔ Br₂ (g) + Cl₂ (g) for which K_c= 32 at 500 K.

If initially pure BrCl is present at a concentration of 3.3 × 10^–3 mol L^–1, what is its molar concentration in the mixture at equilibrium?

Describe the change in hybridisation (if any) of the Al atom in the following reaction.

The first ionization constant of H₂S is 9.1 × 10^–8. Calculate the concentration of HS^– ion in its 0.1M solution. How will this concentration be affected if the solution is 0.1M in HCl also ? If the second dissociation constant of H₂S is 1.2 × 10^–13, calculate the concentration of S^2– under both conditions.

If B-Cl bond has a dipole moment, explain why BCl₃ molecule has zero dipole moment.

Question:
Identify the reagents shown in bold in the following equations as nucleophiles or electrophiles:

(a) CH₃COOH + HO^- → CH₃COO^- + H₂O

(b) CH₃COCH₃ + C^-N → (CH₃)₂ C (CN) (OH)

(c) C₆H₅ + CH₃C⁺O → C₆H₅COCH₃

< Previous Question

Next Question >

Popular questions of class 11 Chemistry

Recently Viewed Questions of Class 11 Chemistry

Comments

Comment(s) on this Question

NCERT Solutions

Quick Links

Resources

Support

Question: Identify the reagents shown in bold in the following equations as nucleophiles or electrophiles: (a) CH3COOH + HO- → CH3COO- + H2O (b) CH3COCH3 + C-N → (CH3)2 C (CN) (OH) (c) C6H5 + CH3C+O → C6H5COCH3

< Previous Question

Next Question >

Popular questions of class 11 Chemistry

Recently Viewed Questions of Class 11 Chemistry

Comments

Comment(s) on this Question

NCERT Solutions

Quick Links

Resources

Support

Question:
Identify the reagents shown in bold in the following equations as nucleophiles or electrophiles:

(a) CH₃COOH + HO^- → CH₃COO^- + H₂O

(b) CH₃COCH₃ + C^-N → (CH₃)₂ C (CN) (OH)

(c) C₆H₅ + CH₃C⁺O → C₆H₅COCH₃