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
Argon and which gas is used in various types of fluorescent and phototubes?
______ آرگون اور کون سی گیس مختلف قسم کی فلوروسینٹ اور فوٹوٹوبز میں استعمال ہوتی ہے؟
Choices:
A. Oxygen
B. Helium
C. Neon
D. Krypton
✅ Answer: C. Neon
📝 Explanation: Argon and neon are commonly used in fluorescent and phototubes.
Enzymes are?
______ انزائمز کیا ہیں؟
Choices:
A. Chemical catalyst
B. Biological catalyst
C. Organic catalyst
D. Inorganic catalyst
✅ Answer: B. Biological catalyst
📝 Explanation: Enzymes are biological catalysts that speed up biochemical reactions.
Atomic weight of uranium is?
______ یورینیم کا ایٹمی وزن کیا ہے؟
Choices:
A. 237
B. 238
C. 226
D. 242
✅ Answer: B. 238
📝 Explanation: The most common isotope of uranium, Uranium-238, has an atomic weight of 238.
Which among the following is in liquid state at normal room temperature?
______ مندرجہ ذیل میں سے کون سی چیز عام کمرے کے درجہ حرارت پر مائع حالت میں ہوتی ہے؟
Choices:
A. Mercury
B. Sodium
C. Phosphorus
D. None of these
✅ Answer: A. Mercury
📝 Explanation: Mercury is the only metal that is liquid at room temperature.
Which of the following gases is used in cigarette lighters?
______ مندرجہ ذیل میں سے کون سی گیس سگریٹ لائٹرز میں استعمال ہوتی ہے؟
Choices:
A. Butane
B. Methane
C. Propane
D. Radon
✅ Answer: A. Butane
📝 Explanation: Butane is commonly used in cigarette lighters.
Adver
Liquefied petroleum gas (LPG) consists of?
______ مائع قدرتی گیس (LPG) کس سے بنتی ہے؟
Choices:
A. Butane and propane
B. Ethane and hexane
C. Ethane and nonane
D. None of these
✅ Answer: A. Butane and propane
📝 Explanation: LPG is mainly a mixture of butane (C₄H₁₀) and propane (C₃H₈).
Which of the following is fire resistant?
______ مندرجہ ذیل میں سے کون سی چیز آگ سے محفوظ ہے؟
Choices:
A. Asbestos
B. Gypsum
C. Dolomite
D. None of these
✅ Answer: A. Asbestos
📝 Explanation: Asbestos is known for its fire-resistant properties.
Which of the following is used for silvering of mirrors?
______ مندرجہ ذیل میں سے کون سی چیز آئینے کی چمک کے لئے استعمال کی جاتی ہے؟
Choices:
A. Silver nitrate
B. Zinc nitrate
C. Silver oxide
D. Pitchblende
✅ Answer: A. Silver nitrate
📝 Explanation: Silver nitrate is used in the chemical process of mirror silvering.
Raw materials used for the manufacture of glass are?
______ شیشے کی تیاری کے لئے استعمال ہونے والے خام مال کیا ہیں؟
Choices:
A. Sand/soda/limestone
B. Sand/charcoal/soda
C. Limestone/charcoal/sulfur
D. Sand/sulfur/soda
✅ Answer: A. Sand/soda/limestone
📝 Explanation: Glass is mainly made from silica (sand), sodium carbonate (soda), and limestone.
Solder is an alloy of?
______ سولڈر کس دھات کا مرکب ہے؟
Choices:
A. Tin and lead
B. Tin and zinc
C. Zinc and lead
D. Zinc and copper
✅ Answer: A. Tin and lead
📝 Explanation: Solder is a metal alloy of tin and lead, used in electronics and plumbing.
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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