Python Revision & Functions: Class 12 Previous Year Questions

Python Revision & Functions questions asked in CBSE board exams

Repeated questions first. Open the free app to see each question as it appeared in the paper, with its marking scheme.

1. State True or False : "A Python List must always contain all its elements of same data type."
   Board 20251 markvery shortRepeated: 2025,2026
2. What will be the output of the following code ? 1 def f1(a,b=1): print(a+b,end='–') c=f1(1,2) print(c,sep='*') (A) 3–2 (B) 3–2* (C) 3–None (D) 3*None–
   Board 20261 markMCQ
3. * 4 P a g e 7.    (dictionaries)            ? 1 (A)    (sequence)      (B)     elements   key     (C)     elements   (value)  …
   Board 20261 markMCQ
4. SQL ,   (table)        (aggregate function)    (smallest value)   (return)   ? 1 (A) MIN() (B) MAX() (C) SMALL() (D) LOWER()
   Board 20261 markMCQ
5.           (  (BUILT_IN)  (FUNCTION) /  (METHODS)     2 (i)  (List) L       (List) L1    (ascending order)   (List) L   (element…
   Board 20262 marksshort answer
6.       D1   (dictionary) , 2 (i) (a)    (Python expression) ,       Key 'RNo', D1       (b)       Python expression   D1   key  value 12   (ii…
   Board 20262 marksshort answer
7. Assertion (A) : [1,2,3]+'123' is an invalid expression in Python. 1 Reason (R) : In Python, a list cannot be concatenated with a string.
   Board 20261 markAssertion-Reason
8.     (ICT)        (Training workshops)     Next Step        (Resource Persons)              …
   Board 20265 markscase-based
9. (a) FruitStack   stack,   list ()   (implement)   ,           ‘Name’, ‘Origin’, ‘Price’  ‘Expiry’ Keys   dictionary               : 3 {…
   Board 20263 marksshort answer
10. * 18 P a g e 31. (a)   (code)  output  : 3 def Exam2026(given) : new=[] for ch in given[1:-1]: if ch.isupper(): new.reverse() elif ch not in new: new.append(ch) elif ch in new: new.pop() print(new) Exam2026("Gold–24Medals")  91* 19 P a…
    Board 20263 marksshort answer
11.          string s     string      (Vowels)     (return)                        (lo…
    Board 20262 marksshort answer
12. (statements) (output) : def Change(N) : N=N+10 print(N,end='$$') N=15 Change (N) print(N) (A) 25$$15 (B) 15$$25 (C) 25$$25 (D) 2525$$
    Board 20251 markMCQ
13. f D 3 D1 f (dictionaries) f : D=("Suman": 40, "Raj":55, "Raman":60} Dl={"Aditi":30,"Amit":90,"Raj":20} ( (built-in Python functions) (i) (a) Dictionary "Ra" key value ffa/ statement ffa ! (b) Dictionary D1 (length) f statement 1 (ii) (a) Dictionary (key-value …
    Board 20252 marksshort answer
14. (operator) True (evaluate)a, ·operator)·variable·(memory location), operator False (evaluate)1 (A) is (B) is not (C) and (D) or 91 Page 4 of 32 3. Identify the correct output of the following code snippet : game="0lympic2024" print(game.index("c")) (A) (B) (C)…
    Board 20251 markMCQ
15. SQL (aggregate function) (NULL) (values) (specified column)(values) (A) len() (B) count() (C) number() (D) num()
    Board 20251 markMCQ
16. sfa (data) : ["Gunjan","Jaundice",4,15000] (i) readdata(data) Cancer· (ii) counrec 1 (t) 91 Page 22 of 32 (a) Based on the data given above, answer the following questions : (i) Write the SQL statement to display the names and wages of those workers whose wage…
    Board 20255 markslong answer
17. (a) 3(output) a : def ExamOn(mystr) : newstr = "" count = 0 for i in mystr: if count%2 != 0: newstr = newstr + str(count-1) else: newstr = newstr + i.lower () count += 1 newstr = newstr + mystr[:2] print("The new string is:", newstr) ExamOn("Genx") 91 Page 18 …
    Board 20254 marksshort answer
18. , (integer) argument (syntax)(logical errors) def Sum(N) for I in range(N): I+S=S return s print(Sum(10) 2(staata NAME, DEPARTMENT, BASICSAL EMPLOYEES SQL table staf)(details) (i) (a)(attribute) (PRIMARYKEY) 1 1 (b (constraint) (attribute) AME f f fa (i) (a) E…
    Board 20253 marksshort answer
19. (a) (Python function) f "lections . txt" In an election many people vote to choose their representative. The candidate getting the maximum share of votes stands elected. Normally, one person has to vote once. The process of voting may vary with time and region…
    Board 20253 marksshort answer
20. (a) Clrstack (stack) (tuple)i-ColorName·RED·GREEN·BLUE f I ColorName (string) RED· GREEN·BLUE quf (integers)1(stack)·"Yellow'·237, 250·68· 3×1=3 clrstack f operations f(Python)ff -f- q (user-defined functions) ff : () push_clr(clrstack· new_clr): q (function) …
    Board 20253 marksshort answer

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