Test preparation

Here are some of the best NCERT Class 11 Chemistry Chapter 11 exercise solutions you can download and study .

1. LearnCBSE

Provides detailed, step by step solutions covering every question—from Intext to Exercise problems.

Available in English, per the latest NCERT syllabus for 2023–24 & 2025- 2026

To represent in detail NCERT ideas of organic chemistry basics (Class 11, Chapter Organic Chemistry - some basic principles and methodologies), you can use a variety of superb online resources. Sites such as  Khan Academy provide entire notes, video recorded lectures and solved examples which deconstructs hard topics such as nomenclature, isomerism, reaction mechanisms and the effect of electron displacement. Physics Wallah and Aakash also have detailed revision videos as part of the NCERT syllabus which goes into details about these base concepts. Going through the platforms will give you deeper insights than the textbook.

Yes, 'cut' is an irregular verb, and its base, simple past, and past participle verb forms are the same.

Cut -> Cut -> Cut

Example:

• I cut vegetables everyday. (Present Tense)
• Yesterday, I cut my finger while chopping vegetables. (Past Tense)
• I have cut the paper in half. (Perfect Tense)

No, modal verbs such as may, must, will, shall, can, could, would, and should are not classified as irregular verbs because modal verbs do not change their forms into past and past participle. However, the modal verbs have their separate category, known as auxiliary or helping verbs.

Example:

• Can has a past form; could, but no past participle.
• Will becomes would in reported speech.

Below are some of the most commonly used irregular verbs:

There are around 200 commonly used irregular verbs in English. However, this number may vary depending on the classification. Some of the examples of frequently used irregular verbs in everyday conversation are: Go, Do, Have, Get, Make, See, Come, Take, etc.

No, irregular verbs are usually divided into these groups:

• Group 1: All Three Forms Are Different: Begin -> Began -> Begun
• Group 2: Two Forms Are Same: Bring -> Brought -> Brought
• Group 3: All Three Forms Are Same: Hit -> Hit -> Hit

The verbs that do not follow a specific pattern of forming the past tense and past participle by simply adding the suffixes '-d' and '-ed' to the base verbs are known as irregular verbs. Instead, these verbs either change entirely, stay the same in V2 & V3, or follow some other unique transformations.

Example:

• Go -> Went -> Gone
• Rise -> Rose -> Risen
• Break -> Broke -> Broken

No, a compound sentence can be short if it has two independent clauses.

Example: I came, and I saw.