Class 12 CS Chapter 1 Back Exercise Part A Solutions Sumita Arora New Syllabus

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1. What are tokens in Python ? How many types of tokens are allowed in Python ? Exemplify your answer.
2. How are keywords different from identifiers ?
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3. What are literals in Python ? How many types of literals are allowed in Python ?
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4. Can nongraphic characters be used and processed in Python ? How ? Give examples to support your answer.
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5. Out of the following, find those identifiers, which cannot be used for naming Variables or Functions in a Python program :
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6. How are floating constants represented in Python ? Give examples to support your answer.
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7. How are string-literals represented and implemented in Python ?
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8. What are operators ? What is their function ? Give examples of some unary and binary operators.
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9. What is an expression and a statement ?
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10. What all components can a Python program contain ?
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11. What are variables ? How are they important for a program ?
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12. Describe the concepts of block or suite and body. What is indentation and how is it related to block and body ?
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13. What are data types ? How are they important ?
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14. How many integer types are supported by Python ? Name them.
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15. What are immutable and mutable types ? List immutable and mutable types of Python.
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16. What is the difference between implicit type conversion and explicit type conversion ?
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18. What is entry controlled loop ? Which loop is entry controlled loop in Python ?
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19. Explain the use of the pass statement. Illustrate it with an example.
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20. Below are seven segments of code, each with a part coloured. Indicate the data type of each coloured part by choosing the correct type of data from the following type.
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