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12th Standard Computer Science — Python -Variables and Operators: Book Back MCQs with Answers & Explanations

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Every Book Back multiple-choice question from Python -Variables and Operators (12th Standard Computer Science, Samacheer Kalvi) — each with the correct option highlighted and a clear, worked explanation. Free to read in English and Tamil.

Answer key at a glance

Q1B Q2A Q3D Q4A Q5C Q6A Q7D Q8B Q9D Q10A
Q1
Who developed Python?
  • A. Ritche
  • B. Guido Van RossumCorrect
  • C. Bill Gates
  • D. Sunder Pitchai
Explanation. Python was created by Guido Van Rossum at CWI in the Netherlands and was officially released in 1991.
Q2
The Python prompt indicates that Interpreter is ready to accept instruction.
  • A. >>>Correct
  • B. <<<
  • C. #
  • D. <<
Explanation. The three greater-than signs (>>>) represent the standard Python interpreter prompt, showing that it is waiting for user input.
Q3
Which of the following shortcut is used to create new Python Program?
  • A. Ctrl + C
  • B. Ctrl + F
  • C. Ctrl + B
  • D. Ctrl + NCorrect
Explanation. Pressing Ctrl + N while working in the Python IDLE shell opens a new, blank editor window to write a script.
Q4
Which of the following character is used to give comments in Python Program?
  • A. #Correct
  • B. &
  • C. @
  • D. \$
Explanation. In Python, single-line comments begin with the hash symbol (#). Anything written after it on that line is ignored by the interpreter.
Q5
This symbol is used to print more than one item on a single line.
  • A. Semicolon(;)
  • B. Dollor(\$)
  • C. comma(,)Correct
  • D. Colon(:)
Explanation. A comma is used as a separator in the print statement to output multiple items on the same line.
Q6
Which of the following is not a token?
  • A. InterpreterCorrect
  • B. Identifiers
  • C. Keyword
  • D. Operators
Explanation. An interpreter is software that executes the code, whereas identifiers, keywords, and operators are actual grammatical tokens within the language.
Q7
Which of the following is not a Keyword in Python?
  • A. break
  • B. while
  • C. continue
  • D. operatorsCorrect
Explanation. Reserved words like break, while, and continue are standard Python keywords, but 'operators' is not a keyword.
Q8
Which operator is also called as Comparative operator?
  • A. Arithmetic
  • B. RelationalCorrect
  • C. Logical
  • D. Assignment
Explanation. Relational operators compare the values of two operands to determine their relationship, making them comparative operators.
Q9
Which of the following is not Logical operator?
  • A. and
  • B. or
  • C. not
  • D. AssignmentCorrect
Explanation. In Python, logical operators are 'and', 'or', and 'not'. Assignment is a separate class of operator used to bind values to variables.
Q10
Which operator is also called as Conditional operator?
  • A. TernaryCorrect
  • B. Relational
  • C. Logical
  • D. Assignment
Explanation. The ternary operator is also known as the conditional operator because it evaluates a condition in a single compact line.
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About these Python -Variables and Operators questions

These are the Book Back multiple-choice questions for Python -Variables and Operators from the Tamil Nadu State Board (Samacheer Kalvi) 12th Standard Computer Science syllabus. Each question shows the correct option and an original, step-by-step explanation so you understand the method, not just the answer. Use the answer key above to jump to any question, then take the practice test to check yourself under exam-like conditions.

Frequently asked questions

How many MCQs are there in Python -Variables and Operators?

This chapter has 10 book-back multiple-choice questions, each with the correct answer and a step-by-step explanation.

Are these 12th Standard Computer Science MCQs free to practise online?

Yes. Every question, answer and explanation here is free, and you can also take them as a timed practice test.

Where can I find the Python -Variables and Operators book-back answers?

The correct option for each question is highlighted on this page with a worked explanation, plus a quick answer-key summary at the top.

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