SPSC 25 years Past Papers 2001 to 2025

Q1431: Array of points which show how the constituent particles of a crystal are arranged at different sites in 3 dimensional space is called ______?

پوائنٹس کی صف جو یہ ظاہر کرتی ہے کہ کس طرح ایک کرسٹل کے اجزاء کے ذرات کو 3 جہتی جگہ میں مختلف سائٹوں پر ترتیب دیا جاتا ہے اسے ______ کہا جاتا ہے؟

A. None of these
B. Space lattice
C. Crystal lattice
D. Lattice array

Q1432: Which of the following transitions is the highest energy transition?

مندرجہ ذیل میں سے کون سا ٹرانزیشن سب سے زیادہ توانائی کی منتقلی ہے؟

A. None of these
B. σ to σ∗
C. n to π∗
D. n to σ∗

Q1433: The Antonym of Amelioration is?

A. Prevention
B. Aggravation
C. None of these
D. Indifference

Q1434: A 300ml mixture of milk and water is 80% pure, how many ml of milk are in the mixture?

A. None of these
B. 180
C. 120
D. 240

Q1435: Many aspects of learning can be studied best through the application of experimental methods to _______?

پر تجرباتی طریقوں کے اطلاق کے ذریعہ سیکھنے کے بہت سے پہلوؤں کا بہترین مطالعہ کیا جاسکتا ہے؟ ______

A. Classroom situations
B. Classroom investigations
C. None of these
D. Classroom conclusions

Q1436: Analogy: Pride : Lions ::?

A. Arrogance : Kings
B. None of these
C. Gaggle : Grease
D. Snarl : Wolves

Q1437: a, b and c are real numbers then either a < b, a > b or a = b. This property of real numbers is called?

A. Transitive property
B. None of these
C. Associative property
D. Trichotomy property

Explanation

The Trichotomy property states that for any two real numbers $a$ and $b$ , exactly one of the following holds: $a < b$ , $a > b$ , or $a = b$ .

This property ensures a well-defined order among real numbers.

Q1438: If every element of a group G is its own inverse then G is called?

A. Finite
B. None of these
C. Abelian
D. Cyclic

Explanation

If every element of a group $G$ is its own inverse, then $g^2 = e$ for all $g in G$ , meaning all elements are of order 2.

Such a group is Abelian because the group operation commutes: $(gh)^2 = e$ implies $g$ and $h$ must commute.

Q1439: Find the missing number: 102, 109, 116, 123, 130, _____?

A. None of these
B. 135
C. 137
D. 141

Q1440: Silicon Valley is a nick name of?

سلیکون ویلی کس کا عرفی نام ہے؟

A. Holland
B. San Francisco
C. Toronto
D. New York

✅ Correct: 0 | ❌ Wrong: 0 | 📊 Total Attempted: 0

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