SPSC 25 YEARS PAST PAPERS 2001 TO 2026
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
آئن کیری _____ میں واقع ہیں؟
- Cell membrane
- Nucleus
- Cell wall
- None of these
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Explanation
Ion carriers are membrane proteins that help transport ions across the cell membrane.They assist in maintaining ion balance and generating electrical signals in cells.
حضرت عثمان کو کیا عنوان دیا گیا ہے؟
- Saifullah
- Zul-Noon
- Zun-Noorain
- None of these
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Explanation
Hazrat Usman (R.A) |
Belonged | Quraysh |
Born | Makkah |
Caliph | Third caliph |
Caliphate | 23 to 35 Hijjah |
Caliphate | 644 to 656 CE |
Titles | Zun-Noorain & Jame-al-Quran |
Martyred | 18th Zul-Hijjah 35 A.H |
Martyrdom day | Friday |
Wives | Ruqayyah (RA) & Umm-e-Kulthum (RA) |
Full Name | Usman bin Affaan |
Death cause | Martyred by rebels |
Hazrat Usman (RA) purchased the adjoining land for 25,000 dirham to extend Masjid-e-Nabavi.
Hazrat Usman used to enfranchise a slave on every Friday.
Muslim Navy was also developed during the period of Hazrat Usman (RA).
Zun-Noorain means Possessor of Two Lights
Jame-al-Quran means compiler of Quran.
- Riddle
- Quarter
- Vanquished
- None of these
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Explanation
Quandary means پہیلی
Riddle means پہیلی
پودوں کے ٹشو کلچر میں ، آرگنائزیس کی اصطلاح کا کیا مطلب ہے؟
- Formation of root and shoot from callus culture
- A formation of callus culture
- Genesis of plants
- None of these
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Explanation
Organogenesis refers to the process where roots and shoots develop from an undifferentiated mass of cells called a callus in plant tissue culture.It occurs under specific hormonal conditions, typically with the right balance of auxins and cytokinins.
فوٹو سسٹم میں بنیادی طور پر _____ میں واقع ہے؟
- Stroma of the chloroplast
- Lumen of the thylakoid membrane
- Unstacked regions of the thylakoid membrane
- None of these
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Explanation
Photosystem I (PSI) is mainly located in the unstacked thylakoid membrane (stroma lamellae), where it efficiently interacts with electron carriers.These regions provide space for PSI to perform cyclic and non-cyclic photophosphorylation without interference from Photosystem II (PSII).
- Butane
- Trans-butane
- 2-butane
- None of these
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Explanation
Hydrogenation is the process of adding hydrogen (H₂) to a compound in the presence of a catalyst (like Ni, Pt, or Pd).
When cis-2-butene undergoes hydrogenation, it gets fully saturated, converting into butane (C₄H₁₀).
الکلائن میڈیم میں فینولفتھیلین کا گلابی رنگ ______ ہے؟
- Due to negative form
- Due to positive form
- Due to neutral form
- None of these
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Explanation
Phenolphthalein is colorless in acidic and neutral solutions but turns pink in an alkaline medium.
This happens because, in a basic solution, phenolphthalein loses H⁺ ions, forming its negatively charged phenolate ion, which gives the pink color.
- Among
- Between
- In
- None of these
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Explanation
"Among" is used when referring to more than two entities."Between" is used for two entities.Since there are four monkeys, "among" is the right choice.
- 10mL
- 20mL
- 25mL
- None of these
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Explanation
Using the neutralization formula:
M₁V₁ = M₂V₂
Given:
- M₁ (HCl) = 0.50 M
- V₁ (HCl) = 10 mL
- M₂ (NaOH) = 0.25 M
- V₂ (NaOH) = ?
Now, solving:
(0.50 M) (10 mL) = (0.25 M) (V₂)
5 = 0.25V₂
V₂ = 20 mL
- Giant
- Gain
- Giga
- None of these
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Explanation
The noun form of the adjective "gigantic" is "giant".
It means something extremely large in size.
