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CBSE Class 11 Informatics Practices Question 47 of 102

Python Programming Fundamentals — Question 8

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Question

Question 8

Identify invalid variable names from the following, giving reason for each:

Group, if, total marks, S.I., volume, tot_strength, #tag, tag$\text{\textdollar}, 9a

Answer
  1. Group — It is a valid variable name.
  2. if — It is a reserved keyword in Python and cannot be used as a variable name.
  3. total marks — It contains a space, which is not allowed in variable names.
  4. S.I. — It contains a dot (.), which is not allowed in variable names.
  5. volume — It is a valid variable name.
  6. tot_strength — It is a valid variable name.
  7. #tag — It starts with a hash (#), which is not allowed in variable names.
  8. tag$\text{\textdollar} — It contains a dollar sign ($\text{\textdollar}), which is not allowed in variable names.
  9. 9a — It starts with a number, which is not allowed in variable names.