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Syllabus

Tuples and Dictionaries — Syllabus

CBSE · Class 11 · Computer Science

What Tuples and Dictionaries covers in CBSE Class 11 Computer Science: 4 topics, for the 2026-27 session. Topics include Tuples: Basic Idea and Creation.

42 questions68 flashcards5 concepts

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4 Topics · CBSE Class 11 Computer Science · 2026-27

Topics in Tuples and Dictionaries

1

Tuples: Basic Idea and Creation

  • A tuple is an ordered sequence of elements of different data types, such as integer, float, string, list or even a tuple.
  • Tuple elements are enclosed in round brackets and separated by commas.
  • Tuple elements are accessed by index starting from 0.
2

Tuple Properties and Operations

  • Tuples are immutable; their elements cannot be changed after creation.
  • Attempting item assignment on a tuple raises TypeError: 'tuple' object does not support item assignment.
  • An element inside a tuple may itself be mutable, such as a list, and that inner list can be modified.
3

Tuple Methods and Built-in Functions

  • len() returns the number of elements in a tuple.
  • tuple() creates an empty tuple when no argument is given, and converts a sequence into a tuple when one is passed.
  • count() returns how many times an element appears in a tuple.
4

Tuple Assignment and Nested Tuples

  • Tuple assignment allows values from a tuple on the right side to be assigned to variables on the left side.
  • The number of variables on the left must be the same as the number of elements in the tuple on the right.
  • If the right side is an expression, it is evaluated first and then assigned.

Key Concepts

Central concept: Python data structures for ordered sequences and key-value mapping

TuplesTuple operationsTuple methods and functionsTuple immutabilityDictionariesDictionary propertiesDictionary operationsDictionary methods and functions

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Frequently Asked Questions

What are the important topics in Tuples and Dictionaries for CBSE Class 11 Computer Science?
Key topics in Tuples and Dictionaries include Tuples: Basic Idea and Creation, Tuple Properties and Operations, Tuple Methods and Built-in Functions, Tuple Assignment and Nested Tuples. Study these first, then practise questions on each for Class 11 exams.
How should I revise Tuples and Dictionaries for Class 11 exams?
Learn the core ideas first, then work through the 42 practice questions on Tuples and Dictionaries. Revise 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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All CBSE Class 11 Computer Science Syllabus

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