Welcome to chemistry afns test 4, an advanced online practice module designed specifically for students preparing for the Armed Forces Nursing Services (AFNS) initial entry test. This quiz covers key FSc Chemistry principles and high-frequency multiple-choice questions to ensure your preparation for the computer-based test is thorough, accurate, and effective.

🌟🌟🌟🌟🌟🌟🌟🌟🌟
🌟🌟🌟🌟🌟🌟🌟🌟🌟🌟🌟🌟🌟🌟
🌟🌟🌟🌟🌟🌟🌟🌟🌟🌟

CHEMISTRY TEST 4

Key Topics Covered in Chemistry AFNS Test 4

To secure top marks in your official AFNS initial academic examination, make sure to thoroughly revise these foundational chemical domains assessed in this module:

Electrochemistry & Redox Reactions: Oxidation numbers, balancing redox equations, electrochemical series, cell potentials, and Faraday’s laws of electrolysis.
Chemical Kinetics & Catalysis: Rate laws, factors influencing reaction rates, mechanisms, activation energy diagrams, and enzyme catalysis.
Periodicity & Representative Elements: Periodic trends in ionization energy, electron affinity, electronegativity, atomic radius, and s/p-block chemistry.
Alcohols, Phenols & Ethers: Nomenclature, preparation methods, physical properties, hydrogen bonding effects, and distinctive chemical tests.

High-Frequency Sample MCQs for Practice

Test your understanding with these representative MCQs frequently featured in competitive entry examinations:

1. In a galvano-voltaic cell, oxidation always takes place at the:

A) Cathode

B) Anode

C) Salt bridge

D) External circuit

Answer: B) Anode

2. Which of the following elements has the highest first ionization energy?

A) Sodium ($Na$)

B) Magnesium ($Mg$)

C) Helium ($He$)

D) Neon ($Ne$)

Answer: C) Helium ($He$)

3. What happens to the rate of a chemical reaction when the concentration of a reactant is doubled in a first-order reaction?

A) Remains unchanged

B) Doubles

C) Quadruples

D) Halves

Answer: B) Doubles

4. Phenol is more acidic than alcohol primarily due to the stabilization of the phenoxide ion through:

A) Inductive effect

B) Resonance

C) Electromeric effect

D) Steric hindrance

Answer: B) Resonance

5. Which gas is liberated at the cathode during the electrolysis of aqueous sodium chloride ($NaCl$) solution?

A) Chlorine gas

B) Oxygen gas

C) Hydrogen gas

D) Sodium vapor

Answer: C) Hydrogen gas

6. Lucas test is used to distinguish between primary, secondary, and tertiary:

A) Alkanes

B) Amines

C) Alcohols

D) Aldehydes

Answer: C) Alcohols

7. The substance that increases the speed of a chemical reaction without being consumed is called a:

A) Solute

B) Inhibitor

C) Catalyst

D) Product

Answer: C) Catalyst

Detailed Overview of Test 4 Preparation

Preparing for chemistry afns test 4 requires a structured approach to solving core problem sets and mastering essential concepts. This practice test is carefully aligned with the syllabus provided by military selection boards to reflect the exact difficulty level of the computer-based examination. By attempting these structured practice questions, you will sharpen your problem-solving speed, improve conceptual memory, and gain confidence for test day.

Effective Revision Tips for Test 4

Review FSc Fundamentals: Focus on definitions, periodic trends, and reaction mechanisms directly in your 1st-year and 2nd-year FSc Chemistry textbooks.
Analyze Incorrect Attempts: Review every incorrect choice after completing the quiz to resolve weak areas and avoid repeating mistakes.
Timed Practice: Practice answering each question quickly to build maximum speed and accuracy under real exam constraints.

Useful Resources & Next Steps

Next Quiz: Move forward to practice Chemistry AFNS Test 5.
Main Hub: Access All AFNS Chemistry Practice Quizzes to attempt tests in proper order.
Official Information: For official entry test dates and eligibility rules, visit the Join Pak Army Official Website.

Results

#1. Alcohol on oxidation gives:

#2. Primary alcohol on oxidation gives:

#3. Secondary alcohol on oxidation gives:

#4. Tertiary alcohol on oxidation gives:

#5. Ethanol on oxidation produces:

#6. Oxidation of methanol produces:

#7. Which reagent is used to oxidize alcohols in lab?

#8. During oxidation of alcohols, oxygen is added and hydrogen is:

#9. Which test distinguishes primary and secondary alcohols?

#10. The enzyme that oxidizes alcohol in human liver is:

#11. Bond energy of H-H bond is approximately:

#12. Bond energy is defined as the energy required to:

#13. Unit of bond energy is:

#14. Bond energy is always:

#15. Bond energy of C-H bond is approximately:

#16. The average bond energy of C-C single bond is:

#17. Which bond has the highest bond energy?

#18. Reaction of an acid with metal carbonate produces:

#19. When HCl reacts with Na2CO3, the gas evolved is:

#20. Which gas turns lime water milky?

#21. In the reaction of H2SO4 with CaCO3, the salt formed is:

#22. The reaction: HCl + CaCO3 → CaCl2 + H2O + CO2 is:

#23. When CO2 is passed through lime water, it first turns:

#24. On excess passing of CO2 through lime water, the milkiness disappears due to formation of:

#25. The IUPAC name of Teflon is:

#26. The monomer of Teflon is:

#27. The chemical formula of Teflon monomer is:

#28. Teflon is formed by which type of polymerization?

#29. Teflon is resistant to:

#30. Which polymer is used as a non-stick coating in cookware?

#31. Teflon belongs to the class of:

#32. The primary bond present in proteins is:

#33. A peptide bond is formed between:

#34. Peptide bond is a type of:

#35. A dipeptide consists of:

#36. A polypeptide is made of:

#37. Primary structure of protein is maintained by:

#38. Secondary structure of proteins is stabilized mainly by:

❌ Your Wrong Attempts: