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Working with Lists and Dictionaries

CBSE · Class 11 · Informatics Practices

Complete topic list for Working with Lists and Dictionaries in CBSE Class 11 Informatics Practices. Key concepts, sub-topics, and what to focus on for board exams.

94 questions72 flashcards5 concepts

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4 Topics · CBSE Class 11 Informatics Practices

Topics in Working with Lists and Dictionaries

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.

Key Concepts

Central concept: Python data structures for storing, accessing, and modifying grouped data

ListsList operationsList methodsList traversalDictionariesDictionary access and traversalDictionary methodsCommon exceptions

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.

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