Skip to main content
Super TutorResources
Chapter 4 of 8
QuestionsNotesFlashcardsSummaryFormulasQuizConceptsSyllabusPlan
Revision Notes

Working with Lists and Dictionaries

CBSE · Class 11 · Informatics Practices

Quick revision notes for Working with Lists and Dictionaries — CBSE Class 11 Informatics Practices. Key concepts, formulas, and definitions for last-minute revision.

94 questions72 flashcards5 concepts

Interactive on Super Tutor

Studying Working with Lists and Dictionaries? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for revision notes and more.

Try Super Tutor — Free

1,000+ Class 11 students started this chapter today

Key Topics to Revise

1

1. Lists: Basics, Indexing, and Properties

  • A list is an ordered, mutable sequence data type.
  • List elements are enclosed in square brackets and separated by commas.
  • A list can contain mixed data types such as integers, floats, strings, tuples, and even another list.
2

2. List Operations

  • Lists are joined using the + concatenation operator.
  • Concatenation does not change the original lists.
  • The + operator works only when both operands are lists; otherwise TypeError occurs.
3

3. List Methods and Built-in Functions

  • append() adds a single element at the end of the list.
  • If a list is passed to append(), it becomes one nested element.
  • extend() adds each element of the passed list individually.
4

4. Dictionary Basics and Traversal

  • A dictionary is a mapping data type.
  • A dictionary stores key-value pairs called items.
  • Each item has a key and a value separated by a colon.

Get complete notes with diagrams and examples

Full Notes

Key Concepts

A list is an orderedList indexing starts at 0Slicing uses list[startLists can be joined using +append() adds one element at

Frequently Asked Questions

What are the important topics in Working with Lists and Dictionaries for CBSE Class 11 Informatics Practices?
Working with Lists and Dictionaries covers several key topics that are frequently asked in CBSE Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Working with Lists and Dictionaries — CBSE Class 11 Informatics Practices?
Understand the core concepts first, then work through the 94 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Working with Lists and Dictionaries

All 8 chapters — CBSE Class 11 Informatics Practices Revision Notes

For serious students

Get the full Working with Lists and Dictionaries chapter — for free.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for CBSE Class 11 Informatics Practices.

Try Super Tutor Free
Try the full chapter — Free