The NCERT Solutions for Class 11 Computer Science Chapter 9 Lists cover all 16 textbook exercise and programming questions for the 2026-27 NCERT chapter. The PDF gives step-by-step answers for list output tracing, append and extend, deletion, nested records, median and in-place reverse programs.
- Use these solutions after reading the NCERT examples on list methods and slicing.
- The PDF includes every exercise question with a detailed solution and expert solution.
- Python 3 behaviour is used for list methods, aliases and program outputs.
Student Feedback: In a Collegedunia student survey of 10,860 Class 11 Computer Science students conducted before the 2026 school exams, 74% said list output questions became easier after writing the list state after every operation.
Table of Contents |
Class 11 Computer Science Lists NCERT Solutions PDF
Lists explains how Python stores ordered mutable collections. Students should revise indexing, slicing and list methods before solving the exercise.
Important: most output mistakes in this chapter come from mixing in-place methods with methods that return a new list.
| Part | What to revise | Why it matters |
|---|---|---|
| Output tracing | sort, sorted, slicing and del | Predicts exact list state |
| Methods | append, extend, insert, pop and remove | Solves direct method questions |
| Nested lists | stRecord[2][4] style access | Retrieves records correctly |
| Programs | Counters, scans, median, duplicate removal and reverse | Handles all programming problems |
Lists Method Questions: append, extend, sort and del
List questions are best solved by writing the list after each operation. This method works for method calls, slice deletion and nested-list retrieval.
- For append: add the argument as one element.
- For extend: add each element from the argument.
- For sort: remember that sort changes the original list, while sorted returns a new list.
Lists Video Explanation for Class 11 Computer Science
Source: Magnet Brains on YouTube
What the Lists Solutions Cover
The solved PDF covers both direct output questions and programming problems. It uses short steps so students can compare each answer with the NCERT exercise.
- Exercise Q1 to Q7: list output tracing, append and extend, deletion, method differences and nested records.
- Programming Q1 to Q4: counters, positive-negative separation, largest and second largest values.
- Programming Q5 to Q9: median, duplicate removal, insertion, deletion and in-place reverse.
Class 11 Computer Science Lists Related Resources
| Resource | Best use | Link |
|---|---|---|
| Revision Notes | Revise list methods quickly | Lists Notes |
| NCERT Book PDF | Read the official chapter examples | Lists Book PDF |
| Handwritten Notes | Use quick handwritten revision notes before practical work | Lists Handwritten Notes |
Class 11 Computer Science NCERT Solutions Chapter-wise Links
| Chapter | Title | NCERT Solutions |
|---|---|---|
| Chapter 6 | Flow of Control | Open NCERT Solutions |
| Chapter 7 | Functions | Open NCERT Solutions |
| Chapter 8 | Strings | Open NCERT Solutions |
| Chapter 9 | Lists | Current chapter |
| Chapter 10 | Tuples and Dictionaries | Open NCERT Solutions |
All NCERT Solutions for Class 11 Computer Science Chapter 9 Lists with Step-by-Step Solutions
Use the solved question cards below for a quick check, then download the full PDF for expert solutions and programming coverage. The companion file is also available at questions-ncert-solutions-class-11-computer-science-chapter-9-lists.html.
Class 11 Computer Science Lists NCERT Solutions FAQs
Ques. What is the main topic of Class 11 Computer Science Chapter 9?
Ans. Chapter 9 explains Python lists, including indexing, slicing, methods, nested lists, copying, functions and list manipulation programs.
Ques. What is the difference between append and extend in lists?
Ans. append adds its argument as one element, while extend adds each element of the iterable separately.
Ques. Does sort change the original list?
Ans. Yes. sort changes the original list in-place. sorted returns a new sorted list unless its result is assigned.
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