Ncert Solutions Chemistry Class 11th

Get insights from 2k questions on Ncert Solutions Chemistry Class 11th, answered by students, alumni, and experts. You may also ask and answer any question you like about Ncert Solutions Chemistry Class 11th

2k
Questions
0
Discussions
1
Active Users
29
Followers

Have a question about Ncert Solutions Chemistry Class 11th? Ask our experts

Ask Your Question

Keep it short & simple. Type complete word. Avoid abusive language.

New answer posted•a year ago

Ncert Solutions Chemistry Class 11th Organic Chemistry - Some Basic Principles and Tech

12.18. Give a brief description of the principles of the following techniques taking an example in each case: (a) Crystallisation (b) Distillation (c) Chromatography

37 Views|Posted a year ago

Asked by Vishal Baghel

Answered by

Vishal Baghel | Contributor-Level 10

a year ago

(a) Crystallisation: In this process the impure solid is dissolved in the minimum volume of a suitable solvent. The soluble impurities pass into the solution while the insoluble ones left behind. The hot solution is then filtered and allowed to cool undisturbed till crystallisation is complete

Upvote

New answer posted•a year ago

Ncert Solutions Chemistry Class 11th Organic Chemistry - Some Basic Principles and Tech

12.17. Explain the terms Inductive and Electromeric effects. Which electron displacement effect explains the following correct orders of acidity of the carboxylic acids?
(a) Cl₃CCOOH > Cl₂CHCOOH > ClCH₂COOH
(b) CH₃CH₂COOH > (CH₃)₂ CHCOOH > (CH₃)₃CCOOH

17 Views|Posted a year ago

Asked by Vishal Baghel

Answered by

Vishal Baghel | Contributor-Level 10

a year ago

Inductive effect: The inductive effect refers to the polarity produced in a molecule as a result of higher electronegativity of one atom compared to another. Atoms or groups which lose electron towards a carbon atom are said to have +I Effect. Examples of +I effect are (Electron releasing)
(CH₃)₂C—,

Upvote

New question posted•a year ago

Ncert Solutions Chemistry Class 11th Organic Chemistry - Some Basic Principles and Tech

<p><strong>12.16. For the following bond cleavages, use curved-arrows to show the electron flow and classify each as homolysis or heterolysis. Identify reactive intermediate produced as free radical, carbocation and carbanion. </strong></p> <div> <div><picture><source srcset="https://images.shiksha.com/mediadata/images/articles/1742296481phpqeagxn_480x360.jpeg" media="(max-width: 500px)"><img src="https://images.shiksha.com/mediadata/images/articles/1742296481phpqeagxn.jpeg" alt="" width="324" height="164"></picture></div> </div>

14 Views|Posted a year ago

Asked by Vishal Baghel

New answer posted•a year ago

Ncert Solutions Chemistry Class 11th Organic Chemistry - Some Basic Principles and Tech

12.15. What is the relationship between the members of following pairs of structures? Are they structural or geometrical isomers or resonance contributors?

41 Views|Posted a year ago

Asked by Vishal Baghel

Answered by

Vishal Baghel | Contributor-Level 10

a year ago

(a) They are structural isomers. The given compounds have the same molecular formula but they differ in the position of the functional group (here ketone group: first one at C-3 and second one at C-2 positions).

(b) They are geometrical isomers. Compounds having the same molecular formula, th

Upvote

New answer posted•a year ago

Ncert Solutions Chemistry Class 11th Chemical Bonding and Molecular Structure

4.32. Distinguish between a sigma bond and a pi bond.

7 Views|Posted a year ago

Asked by Payal Gupta

Answered by

Payal Gupta | Contributor-Level 10

a year ago

4.32.

Sigma bond	Pi bond
It is formed by axial overlap of the atomic orbitals.	It is formed by the sidewise overlap of the atomic orbitals.
The bond is quite strong.	It is a comparatively weaker bond.
Only one lobe of the p-orbitals is involved in the overlap.	Both lobes of the p-orbitals are involved in the overlap.

Electron cloud of the molecular orbital is symmetrical around the inter-nuclear axis.

The electron cloud is not symmetrical

Upvote

New answer posted•a year ago

Ncert Solutions Chemistry Class 11th Organic Chemistry - Some Basic Principles and Tech

12.14. Classify the following reactions in one of the reaction type studied in this unit.
(a) CH₃CH₂Br + HS^– → CH₃CH₂SH + Br^–
(b) (CH₃)₂C=CH₂ + HCl → (CH₃)₂ClC—CH₃
(c) CH₃CH₂Br + HO^– → CH₂=CH₂ + H₂O + Br^–
(d) (CH₃)₃C—CH₂OH + HBr → (CH₃)₂CBrCH₂CH₂CH₃ + H₂O

45 Views|Posted a year ago

Asked by Vishal Baghel

Answered by

Vishal Baghel | Contributor-Level 10

a year ago

(a) Nucleophilic substitution (b) Electrophilic addition
(c) Bimolecular elimination (d) Nucleophilic substitution with rearrangement.

Upvote

New answer posted•a year ago

Ncert Solutions Chemistry Class 11th Chemical Bonding and Molecular Structure

4.31. What do you understand by bond pairs and lone pairs of electrons? Illustrate by giving one example of each type.

14 Views|Posted a year ago

Asked by Payal Gupta

Answered by

Payal Gupta | Contributor-Level 10

a year ago

4.31. The electron pair involved in sharing between two atoms during covalent bonding is called shared pair or bond pair. At the same time, the electron pair which is not involved in sharing is called lone pair of electrons.

For example: CH₄ has 4 bond pairs but H₂O has 2 bond pairs and 2 lone p

Upvote

New answer posted•a year ago

Ncert Solutions Chemistry Class 11th Organic Chemistry - Some Basic Principles and Tech

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

97 Views|Posted a year ago

Asked by Vishal Baghel

Answered by

Vishal Baghel | Contributor-Level 10

a year ago

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

(b) Here, –CN acts as a nucleophile as it is an electron-rich species, i.e., it is a nucleus-seeking species.

(c) CH₃C⁺O acts as an electrophile as it is an electron deficient species.

Upvote

New answer posted•a year ago

Ncert Solutions Chemistry Class 11th Organic Chemistry - Some Basic Principles and Tech

12.12. What are electrophiles and nucleophiles? Explain with examples.

10 Views|Posted a year ago

Asked by Vishal Baghel

Answered by

Vishal Baghel | Contributor-Level 10

a year ago

Electrophiles: The name electrophiles mean electron loving. Electrophiles are electron deficient. They may be positive ions or neutral molecules.
Ex: H⁺, Cl⁺, Br⁺, NO₂⁺, R₃C⁺, RN₂⁺, AlCl₃, BF₃
Nucleophiles: The name nucleophiles means 'nucleus loving' and indicates that it attacks the region of low el