Chemistry Guess Paper HSSC-I 2025
Are you preparing for the FBISE Chemistry HSSC-I (1st Year) exams in 2025? This carefully curated guess paper highlights the most important exercises and questions from the syllabus to help you focus on key topics and score better.
Important Questions & Topics for FBISE Exams 2025
GUESS PAPER
Class 11 Chemistry Important Topics
Chapter 2
- Find the quantum numbers of atoms
- Hund's rule, n+l rule (numerical)
- Determination of electronic configuration
- Trends/Anomalies in trend of ionization energy
- Determining the average atomic mass
- Differentiate between N-type and P-type semiconductor
Chapter 3
- VSEPR theory (Practice)
- Comparison of strength of sigma and pi bonds
- Hybridization (most important)
- VBT (Practice)
- Why is ice less dense than water?
- Comparison of ionic and covalent bond
- Molecular Orbital Theory (MOT) (Practice)
- Differentiate between paramagnetic and diamagnetic substances
Chapter 4
- Determine mole-volume relation (numerical)
- Limiting and non-limiting reactant numericals
- Why theoretical yield is always greater than actual yield?
- Yield calculation
Chapter 5
- Factors affecting evaporation, surface tension
- Differentiate between amorphous solid and crystalline solid
- Properties of crystalline solids: habit of crystal, geometrical shape
Chapter 6
- Conditions for standard heat of reaction
- Standard heat of formation, solution, neutralization, combustion
- Bond energy calculation
- Define system and surroundings
- Hess’s law and its applications (Born-Haber cycle & numerical – most important)
Chapter 7
- Define rate law, order of reaction, determining order of reaction
- Arrhenius equation
- Graph of endothermic and exothermic reactions
- Example 7.2, 7.4, 7.5
- Assessment 7.3
Chapter 8
- Differentiate between reversible and irreversible reactions
- Why chemical equilibrium is dynamic?
- How the magnitude of Kc indicates the position of equilibrium
- Le Chatelier's Principle and its factors
- Haber's Process
- Example 8.5
Chapter 9
- Lewis concept, conjugate acid and conjugate base
- Buffer solution and its applications
- Precipitation reaction
Chapter 10
- Why Group 1 & 2A are called s-block while 3A to 8A are p-block elements
- Reaction of chlorides with water
- Identification of unknown elements
Chapter 11
- Mechanism of formation of PAN
- Properties + Uses of sulphur
Chapter 12
- Reactivity order of halogens and their acidic strength
Chapter 13
- Types of smog
- Acid rain
Chapter 14
- Environmental problems caused by water pollution
- Raw water treatment
- Conservation and management strategies for water resources
Chapter 15
- Calculating empirical and molecular formula of compounds
- Why millions of organic compounds are formed?
- Homologous series and its properties
- Naming alkenes, alkynes, carboxylic acids, alcohols, ketones
- Why alkanes are inert?
- Relative reactivity of alkenes and alkynes
- Differentiate between elimination and substitution reactions
- Differentiate between SN1 and SN2
- Metamerism, tautomerism
Chapter 16
- Why benzene is aromatic?
- Why alkanes are inert?
- Dehydration of alcohols
- Hydrohalogenation of alkenes
- Stability of primary, secondary, and tertiary carbocations
- Ozonolysis of alkenes
- Geometrical isomerism
Chapter 17
- Leaving group, nucleophile, substrate, elimination reactions
Chapter 18
- Alcohols
- Lucas test
- Iodoform test
- Oxidation of primary, secondary, and tertiary alcohols
Chapter 19
- Haloform reaction
- Reduction of aldehydes and ketones with hydrides
- Reaction with 2,4-DNPH
- Oxidation reactions of aldehydes and ketones
- Tests to distinguish aldehydes and ketones
- Preparation of carboxylic acids via hydrolysis of esters
- Preparation of esters with mechanism
- Hydrolysis of esters
Chapter 20
- Physical properties of amines
- Comparison of basicity: ammonia vs. methylamine
- Comparison of primary vs. secondary amines
- Preparation of diazonium salt
Chapter 21
- Tests used for identification of functional groups
- Key reagents for synthesis (oxidizing, reducing, dehydrating)
Chapter 22
- Fractions of petroleum and their uses
Good
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