Chemistry MCQs for ETEA Jobs – Test Preparation Guide
Are you preparing for the ETEA Chemistry job exam? Look no further! This guide provides a comprehensive collection of MCQs, past papers, solved questions, and study materials to help you prepare effectively and enhance your chances of success.
Key Features of This Guide
✅ Latest ETEA Chemistry MCQs (Updated for 2025)✅ Pak MCQs for General Knowledge & Current Affairs
✅ Past Papers with Solutions – Learn from previous exams
✅ Syllabus Breakdown – Understand what to study
✅ Effective Study Tips – Proven strategies for scoring high
✅ Downloadable PDFs – Get past papers in one click
Many people died in London in 1952 as a result of air pollution caused by?
______ 1952 میں لندن میں بہت سے لوگ کس آلودگی کی وجہ سے ہلاک ہوئے؟
Choices:
A. Mist
B. Fog
C. Smog
D. Smoke
✅ Answer: C. Smog
📝 Explanation: The "Great Smog of London" in 1952 was caused by a mixture of smoke and fog, leading to severe air pollution and health issues.
Fluorocarbons are effective scavengers for ozone due to?
______ فلوروکاربن اوزون کو کس وجہ سے تباہ کرتے ہیں؟
Choices:
A. Photolytic reaction of O₂ producing Cl radicals
B. Photolytic decomposition of O₃ producing O₂, Cl, and O radicals
C. Photolytic decomposition of O₃ into O₂
D. Photolytic production of oxides of nitrogen
✅ Answer: B. Photolytic decomposition of O₃ producing O₂, Cl, and O radicals
📝 Explanation: Chlorofluorocarbons (CFCs) decompose under UV light, releasing chlorine radicals (Cl•), which destroy ozone (O₃) in the stratosphere.
Lipids are?
______ لپڈز کیا ہوتے ہیں؟
Choices:
A. Long chain fatty acid esters
B. Long chain sulphonic acid esters
C. Polymeric hydrocarbons
D. Polymeric aldehydes
✅ Answer: A. Long chain fatty acid esters
📝 Explanation: Lipids (fats and oils) are primarily esters of glycerol and long-chain fatty acids.
Digestion of fat in the intestine is aided by?
______ آنت میں چربی کے ہاضمے میں کیا مدد دیتا ہے؟
Choices:
A. Diffusion
B. Protection
C. Peptization
D. Emulsification
✅ Answer: D. Emulsification
📝 Explanation: Bile salts emulsify fats, breaking them into tiny droplets for better enzyme action.
"Firdous Al-Hikmat Fi Ilmul Kemia" was written by?
______ "فردوس الحکمت فی علم الکیمیا" کس نے لکھی؟
Choices:
A. Alberuni
B. Jabir bin Haiyan
C. Khalid bin Yazeed
D. Buali Sina
✅ Answer: B. Jabir bin Haiyan
📝 Explanation: Jabir bin Haiyan, known as the father of chemistry, wrote several books, including Firdous Al-Hikmat Fi Ilmul Kemia.
Adver
Ammonia was obtained from urine by?
______ پیشاب سے امونیا کس نے حاصل کی؟
Choices:
A. Al-Jahiz
B. Wohler
C. Jabir bin Haiyan
D. Al-Beruni
✅ Answer: C. Jabir bin Haiyan
📝 Explanation: Jabir bin Haiyan developed methods to obtain ammonia from urine through distillation.
Madam Curie is famous for her work in the field of?
______ مادام کیوری کس شعبے میں مشہور ہیں؟
Choices:
A. Radioactivity
B. Biochemistry
C. Medicine
D. Astronomy
✅ Answer: A. Radioactivity
📝 Explanation: Marie Curie discovered radium and polonium and worked extensively on radioactivity.
Madam Curie is famous for her work in the field of?
______ مادام کیوری کس شعبے میں نمایاں کام کر چکی ہیں؟
Choices:
A. Biochemistry
B. Nuclear chemistry
C. Analytical chemistry
D. Organic chemistry
✅ Answer: B. Nuclear chemistry
📝 Explanation: Marie Curie is known for her discoveries in radioactivity and nuclear chemistry.
Who was the first to prepare sulfuric acid?
______ سب سے پہلے سلفیورک ایسڈ کس نے تیار کیا؟
Choices:
A. Aristotle
B. Dalton
C. Bohr
D. Jabir Bin Hayan
✅ Answer: D. Jabir Bin Hayan
📝 Explanation: Jabir Bin Hayan (Geber) prepared sulfuric acid and many other chemical compounds.
Cooling of vapors of some compounds changes them directly into solid state. This phenomenon is called?
______ کچھ مرکبات کے بخارات کو ٹھنڈا کرنے پر وہ براہ راست ٹھوس میں تبدیل ہو جاتے ہیں، اسے کیا کہتے ہیں؟
Choices:
A. Sublimation
B. Evaporation
C. Condensation
D. Crystallization
✅ Answer: A. Sublimation
📝 Explanation: Sublimation is the direct transition from gas to solid without passing through the liquid phase.
Download ETEA Chemistry Past Papers PDF
For easy access to past papers, download the PDF file below:
[Download PDF Here]
By practicing past papers, you’ll learn how to manage your time effectively during the exam and understand the types of questions that typically appear.
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