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SPSC Chemistry Subject Specialist Paper 13th February 2025

# Question Options
1 Which among the following accurately defines “Mother-of-pearl”? (A) An oyster which yields the pearl (B) A special large-sized pearl found in Japan (C) Female individual of a certain species of shelled mollusks (D) Hard iridescent substance forming the inner layer of certain shell
2 Who invented the infrared telescope? (A) George Gamov (B) David Allan (C) Frank Low (D) David Gregory
3 Wax of ear is produced by: (A) Meibomian glands (B) Ceruminous glands (C) Zeis glands (D) Inguinal glands
4 Which of the following characters is not typical to class Mammalia? (A) Alveolar lungs (B) Seven cervical vertebrae (C) Thecodont dentition (D) Ten pairs of cranial nerves
5 Choose the correct possessive form: “The book belongs to Sarah and Mark.” (A) Sarah and Mark’s (B) Sarah’s and Mark’s book (C) Sarah’s and Mark’ book (D) Sarahs’ and Marks’ book
6 Which of the following is spelled correctly? (A) Conscientious (B) Consicentious (C) Consciencious (D) Consciencious
7 Prokaryotic genetic system contains: (A) DNA and histones (B) DNA and no histones (C) Only DNA and no histones (D) Neither DNA nor histones
8 Choose the correct form of the verb: “She ___ to the store yesterday.” (A) Goes (B) Went (C) Go (D) Gone
9 Identify the gerund in the sentence: “Swimming is my favorite activity.” (A) Swimming (B) Is (C) Activity (D) Favorite
10 ___ is not a true amphibian animal. (A) Toad (B) Salamander (C) Tortoise (D) Frog
11 What is the national animal of Pakistan? (A) Markhor (B) Snow Leopard (C) Lion (D) Tiger
12 Which of these is not a living fossil? (A) Frog (B) Duck-billed (C) Lungfish (D) Archaeopteryx
13 Which is the largest desert in the world? (A) Sahara Desert (B) Arabian Desert (C) Gobi Desert (D) Kalahari Desert
14 What is the name of the event during gametogenesis when pieces of chromosome may reunite at correct sites but with wrong ends? (A) Inversion (B) Duplication (C) Deletion (D) None of these
15 Choose the correct synonym for the word “benevolent.” (A) Cruel (B) Kind (C) Selfish (D) Lazy
16 Which one of the following is an example of an analogous organ? (A) Hand of man and leg of horse (B) Wings of bat and bird (C) Testis in male and ovaries in females developed from same embryonic tissue (D) None of the above
17 Goiter is a disease caused by the insufficient amount of ___ in the body. (A) Mercury (B) Iron (C) Iodine (D) Magnesium
18 In which of the following organs of the alimentary canal, there is least or no peristalsis? (A) Esophagus (B) Stomach (C) Ileum (D) Rectum
19 Amphibians are considered to have evolved from ___. (A) Newts (B) Varanopae (C) Dipnoi (D) Hagfishes
20 Lumen of the small intestine has: (A) Squamous epithelium (B) Columnar epithelium (C) Cuboidal epithelium (D) Specialized epithelium
21 Chemical signals between individuals of the same species are called: (A) Pheromones (B) Endogenous (C) Kinesis (D) Hormones
22 The idiom “go bananas” means: (A) Take bananas (B) Bring bananas (C) Act happily (D) Act crazily
23 The first Constitution of Pakistan was implemented in which year? (A) 1947 (B) 1956 (C) 1962 (D) 1973
24 Calculate volume for 10.0 moles of gas at STP: (A) 22.4L (B) 0.224L (C) 224L (D) None of these
25 The G20 Summit in 2023 was held in which country? (A) India (B) Italy (C) Australia (D) Japan
26 Absorbance of solution at 100% T is: (A) 100 (B) 0.100 (C) 0.0 (D) 1.00
27 Identify the Lucas reagent among the following: (A) Conc. HCl & Anhydrous ZnCl2 (B) Dil. HCl hydrated ZnCl2 (C) Conc. HNO3 & Anhydrous ZnCl2 (D) Conc. HNO3 & Anhydrous MgCl2
28 The largest organ in the human body is: (A) Heart (B) Liver (C) Skin (D) Lungs
29 At dagger’s drawn means: (A) To have bitter enmity (B) To be very friendly (C) To be unknown (D) To be very familiar
30 The unit for equilibrium constant for reaction 2H2O ↔ H3O+ + OH- is: (A) mol.L-1 (B) mol2.L-1 (C) mol.L-2 (D) None of these
31 What does “VPN” stand for? (A) Virtual Private Network (B) Virtual Personal Network (C) Verified Private Network (D) Virtual Protected Network
32 An element that forms basic oxides: (A) N (B) S (C) O (D) Ca
33 Phenols are not having: (A) Hydroxyl group (B) Closed carbon chain (C) Carbonyl group (D) Aromatic rings
34 The number of Hajj(s) performed by the Muslims during the life of Hazrat Muhammad (PBUH) was: (A) 01 (B) 02 (C) 03 (D) None of these
35 Is inert chemical species: (A) O2 (B) Na (C) N2 (D) Cl2
36 Which of the following possesses sp3d2 hybridization? (A) K3[CoF6] (B) [Co(NH3)6]Cl3 (C) K3[Fe(CN)6] (D) K4[Fe(CN)6]
37 The noun of adjective “gigantic” is: (A) Gain (B) Giant (C) Gate (D) Optical
38 The Kartarpur Corridor was opened for Sikh pilgrims in which year? (A) 2018 (B) 2019 (C) 2020 (D) 2021
39 Hydrogenation of cis-2-butane produces: (A) Trans-butane (B) Cis-butane (C) 2-butene (D) Butane

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