SUMMARY: The chapter introduces the basics of Python programming, including its syntax, semantics, and fundamental programming constructs. KEY TOPICS: Python syntax, variables and data types, operators, control structures, functions, input and output operations
Which of the following is a valid Python identifier?
A2name
Bname_2
Cname 2
Dfor
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Correct answer: Option 2 — name_2
Q21 Mark
The output of print(type(3.14)) is:
A<class 'int'>
B<class 'float'>
C<class 'str'>
D<class 'bool'>
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Correct answer: Option 2 — <class 'float'>
Q31 Mark
Which of the following is NOT a Python keyword?
Aif
Bfor
CFunction
Dwhile
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Correct answer: Option 3 — Function
Q41 Mark
The result of 7 // 2 in Python is:
A3.5
B3
C4
D3.0
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Correct answer: Option 2 — 3
Q51 Mark
The operator used for exponentiation in Python is:
A^
B**
Cexp
Dpow
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Correct answer: Option 2 — **
Q61 Mark
What is the correct way to declare a variable in Python?
Avar x = 10
Bx := 10
Cx = 10
Ddeclare x = 10
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Correct answer: Option 3 — x = 10
Q71 Mark
Which of the following data types is immutable in Python?
AList
BDictionary
CSet
DTuple
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Correct answer: Option 4 — Tuple
Q81 Mark
What will be the output of the following code: print(5 * 2 ** 3) ?
A10
B40
C80
D20
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Correct answer: Option 2 — 40
Q91 Mark
Which of the following operators is used for logical AND in Python?
A&&
BAND
C&
Dand
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Correct answer: Option 4 — and
Q101 Mark
How do you start a comment in Python?
A//
B#
C/*
D<!--
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Correct answer: Option 2 — #
Q111 Mark
What is the output of the following code: print('Hello' + 'World')?
AHello World
BHelloWorld
CHello+World
DError
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Correct answer: Option 2 — HelloWorld
Q121 Mark
Which of the following is a valid way to define a function in Python?
Adef myFunction[]:
Bfunction myFunction():
Cdef myFunction():
DmyFunction() = def:
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Correct answer: Option 3 — def myFunction():
Q131 Mark
What will the following code snippet return: len('Python')?
A6
B7
C5
D8
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Correct answer: Option 1 — 6
Q141 Mark
What will be the output of the following code: print(10 % 3)?
A1
B3
C0
D10
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Correct answer: Option 1 — 1
Q151 Mark
Which of the following statements is true about Python lists?
ALists are immutable
BLists can contain mixed data types
CLists cannot be nested
DLists are fixed in size
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Correct answer: Option 2 — Lists can contain mixed data types
Short Answer Questions10 questions
Q163 Marks
Differentiate between mutable and immutable data types in Python with two examples each.
Q173 Marks
List any three rules for naming a variable in Python.
Q183 Marks
What is the difference between = and == in Python?
Q193 Marks
Explain the use of the input() function with one example.
Q203 Marks
Differentiate between integer and float types in Python.
Q213 Marks
What are the basic data types available in Python?
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The basic data types in Python include integers, floats, strings, and booleans. Integers represent whole numbers, floats represent decimal numbers, strings are sequences of characters, and booleans represent True or False values.
Q223 Marks
Explain the concept of operators in Python. Provide examples of at least two types of operators.
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Operators in Python are special symbols that perform operations on variables and values. Examples include arithmetic operators like + (addition) and - (subtraction), and comparison operators like == (equal to) and != (not equal to).
Q233 Marks
What is the purpose of control structures in Python? Give an example of a control structure.
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Control structures in Python are used to dictate the flow of execution in a program. An example is the 'if' statement, which executes a block of code only if a specified condition is true.
Q243 Marks
Describe the syntax for defining a function in Python. What is the significance of the 'return' statement?
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A function in Python is defined using the 'def' keyword followed by the function name and parentheses. The 'return' statement is used to exit a function and send a value back to the caller, allowing the function to produce output.
Q253 Marks
How can you take multiple inputs from a user in Python? Provide a code snippet as an example.
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Multiple inputs can be taken using the input() function in combination with split(). For example: 'x, y = input("Enter two numbers: ").split()' allows the user to input two numbers separated by space.
Long Answer Questions6 questions
Q266 Marks
Differentiate between mutable and immutable data types in Python in tabular form with examples.
Q276 Marks
Compare for loop and while loop in Python with the help of a table.
Q286 Marks
Differentiate between break and continue statements in tabular form.
Q296 Marks
Compare = and == in Python with the help of a table.
Q306 Marks
Differentiate between print() and input() functions in Python in tabular form.
Q316 Marks
Write a Python program to compute the area and circumference of a circle given its radius. Use input() and round the output to 2 decimal places.
Assertion–Reason Questions8 questions
Q321 Mark
Assertion (A): Python is dynamically typed.
Reason (R): Variables do not need to be declared with a type before use.
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Correct answer: Option 1 —
Both A and R are true, and R is the correct explanation of A.
Q331 Mark
Assertion (A): Indentation is mandatory in Python.
Reason (R): It defines blocks of code instead of using braces.
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Correct answer: Option 1 —
Both A and R are true, and R is the correct explanation of A.
Q341 Mark
Assertion (A): Python is an interpreted language.
Reason (R): The interpreter executes Python code line by line.
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Correct answer: Option 1 —
Both A and R are true, and R is the correct explanation of A.
Q351 Mark
Assertion (A): The print() function ends with a newline by default.
Reason (R): The default value of the end parameter is '\n'.
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Correct answer: Option 1 —
Both A and R are true, and R is the correct explanation of A.
Q361 Mark
Assertion (A): Boolean values in Python are True and False.
Reason (R): They are subtypes of the integer type with values 1 and 0.
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Correct answer: Option 1 —
Both A and R are true, and R is the correct explanation of A.
Q371 Mark
Assertion (A): In Python, a variable can hold values of different data types during the execution of a program.
Reason (R): This is due to Python's dynamic typing feature.
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Correct answer: Option 1 —
Both A and R are true, and R is the correct explanation of A.
Q381 Mark
Assertion (A): The syntax for defining a function in Python requires the use of the keyword 'def'.
Reason (R): This keyword is used to indicate the start of a function definition.
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Correct answer: Option 1 —
Both A and R are true, and R is the correct explanation of A.
Q391 Mark
Assertion (A): Python supports both single-line and multi-line comments.
Reason (R): Single-line comments start with a hash symbol (#), while multi-line comments are enclosed in triple quotes.
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Correct answer: Option 1 —
Both A and R are true, and R is the correct explanation of A.
Statement-Based Questions8 questions
Q401 Mark
Statement 1: Python uses indentation to define code blocks.
Statement 2: A consistent number of spaces (usually 4) is the convention.
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Correct answer: Option 1 —
Both statements are true.
Q411 Mark
Statement 1: Comments in Python begin with the # symbol.
Statement 2: They are ignored by the interpreter.
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Correct answer: Option 1 —
Both statements are true.
Q421 Mark
Statement 1: The input() function reads a string from the user.
Statement 2: It must be type-converted if a number is needed.
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Correct answer: Option 1 —
Both statements are true.
Q431 Mark
Statement 1: Operator precedence in Python follows mathematical rules.
Statement 2: Parentheses can be used to override the default precedence.
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Correct answer: Option 1 —
Both statements are true.
Q441 Mark
Statement 1: Type conversion can be implicit or explicit.
Statement 2: int() float() str() are explicit conversion functions.
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Correct answer: Option 1 —
Both statements are true.
Q451 Mark
Statement 1: In Python, a variable name can start with a digit.
Statement 2: The float data type can represent decimal numbers.
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Correct answer: Option 3 —
Only Statement 2 is true.
Q461 Mark
Statement 1: The 'if' statement in Python is used to create loops.
Statement 2: Python supports multiple data types including lists and tuples.
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Correct answer: Option 2 —
Only Statement 1 is true.
Q471 Mark
Statement 1: The 'while' loop in Python executes as long as a condition is true.
Statement 2: Functions in Python can return multiple values using tuples.
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Correct answer: Option 1 —
Both statements are true.
Case Study / Passage Questions1 question
Q483 Marks
A bank intern is asked to write a Python program to compute simple interest given the principal P rate R and time T. The formula is SI = (P * R * T) / 100. The intern uses input() to read three values then computes and prints SI. The program should also display the maturity amount A = P + SI.
To assign a value to a variable in Python use:
A=
B==
C=:
Dis
If the user enters 5000 for principal what type does input() return by default?
Aint
Bfloat
Cstr
Dbool
Write the complete Python program with type-conversion error handling.
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1. Option 1 — =
2. Option 3 — str
3. The Python program is: P = float(input('Principal: ')); R = float(input('Rate: ')); T = float(input('Time: ')); SI = (P * R * T) / 100; A = P + SI; print('Simple Interest:' SI); print('Maturity Amount:' A). The input() function always returns a string so we use float() to convert to a number. Without conversion the multiplication would fail or give unexpected results.
Table-Based Questions4 questions
Q496 Marks
Identify the data type of each Python literal.
Literal
Type
42
?
3.14
?
'Hello'
?
True
?
[1, 2, 3]
?
(1, 2, 3)
?
{'a':1}
?
Q506 Marks
Predict the output of each Python expression.
Expression
Output
3 + 2 * 4
?
10 / 3
?
10 // 3
?
10 % 3
?
2 ** 3
?
'a' + 'b'
?
'ab' * 3
?
Q515 Marks
Identify the result of each comparison in Python.
Comparison
Result
5 == 5
?
5 == 5.0
?
5 is 5.0
?
'5' == 5
?
[1, 2] == [1, 2]
?
[1, 2] is [1, 2]
?
Q523 Marks
Study the table of Python operators and answer:
Operator
Meaning
Example
Result
+
Addition or concat
3 + 5
8
**
Exponent
2 ** 3
8
//
Floor div
7 // 2
3
%
Modulus
7 % 2
1
==
Equality
5 == 5
True
The output of 7 // 2 in Python is:
A2
B3
C3.5
D4
The output of 2 ** 3 is:
A8
B9
C6
D5
Discuss any five categories of operators in Python with examples.
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1. Option 2 — 3
2. Option 1 — 8
3. Python operators include arithmetic (+ - * / // % **) relational (< <= > >= == !=) logical (and or not) assignment (= += -= *= /=) and bitwise (& | ^ ~ << >>). Operator precedence follows mathematical conventions: ** then * / // % then + - then comparison then logical. Use parentheses to override the default precedence.
Picture-Based Questions1 question
Q533 Marks
Study the Python data type hierarchy and answer:
Which of the following is a MUTABLE data type?
Aint
Blist
Cstr
Dtuple
Which is an immutable sequence?
Alist
Bdict
Ctuple
Dset
Differentiate between mutable and immutable data types in Python with examples.
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1. Option 2 — list
2. Option 3 — tuple
3. Python data types are categorised as Numeric (int float complex) Sequence (list tuple str range) Mapping (dict) and Set (set frozenset). Mutable types (list dict set) can be changed in place; immutable types (int float str tuple frozenset) cannot. Mutability matters for function arguments and dict keys.
