10th Class Chemistry Most Repeated MCQsLast 5 Years (Lahore Board)

SECTION 1: Basic Chemistry Concepts

✅ Matter is mixture of?
🟡 Repeated in: 2018, 2019, 2021, 2023, 2024

✅ Unit of molar concentration?
🟡 Repeated in: 2018, 2019, 2020, 2022

✅ About 99% atmosphere mass lies in?
🟡 Repeated in: 2018, 2019, 2021, 2023, 2024

✅ Specific heat capacity of water?
🟡 Repeated in: 2019, 2020, 2021, 2023

✅ Reaction between acid and base produces?
🟡 Repeated in: 2018, 2020, 2023, 2024


🧬 SECTION 2: Organic Chemistry

✅ Dehydration of alcohols is carried out with?
🟡 Repeated in: 2018, 2019, 2020, 2022, 2024

✅ Photosynthesis produces?
🟡 Repeated in: 2020, 2021, 2022, 2023

✅ Thousands of amino acids polymerize to form?
🟡 Repeated in: 2019, 2023, 2024

✅ General formula of carbohydrates?
🟡 Repeated in: 2018, 2020, 2022

✅ Which one is saturated hydrocarbon?
🟡 Repeated in: 2020, 2022, 2023


🌍 SECTION 3: Environmental Chemistry

✅ Gas used to destroy bacteria in water?
🟡 Repeated in: 2018, 2022, 2023, 2024

✅ Gas that protects earth from UV rays?
🟡 Repeated in: 2021, 2022, 2023

✅ Temporary hardness of water is due to?
🟡 Repeated in: 2020, 2021, 2024

✅ Permanent hardness removed by?
🟡 Repeated in: 2022, 2024

✅ Acid rain / pollutants related MCQs
🟡 Repeated in: 2021, 2023


BONUS (High Chance Questions)

🔥 Lactic acid is present in?
🔥 Drying agent for gases?
🔥 Which ion causes hardness in water?
🔥 Fat soluble vitamin?

SECTION 1: Basic Chemistry Concepts

✅ Matter is mixture of?
🟡 Repeated in: 2018, 2019, 2021, 2023, 2024

✅ Unit of molar concentration?
🟡 Repeated in: 2018, 2019, 2020, 2022

✅ About 99% atmosphere mass lies in?
🟡 Repeated in: 2018, 2019, 2021, 2023, 2024

✅ Specific heat capacity of water?
🟡 Repeated in: 2019, 2020, 2021, 2023

✅ Reaction between acid and base produces?
🟡 Repeated in: 2018, 2020, 2023, 2024


🧬 SECTION 2: Organic Chemistry

✅ Dehydration of alcohols is carried out with?
🟡 Repeated in: 2018, 2019, 2020, 2022, 2024

✅ Photosynthesis produces?
🟡 Repeated in: 2020, 2021, 2022, 2023

✅ Thousands of amino acids polymerize to form?
🟡 Repeated in: 2019, 2023, 2024

✅ General formula of carbohydrates?
🟡 Repeated in: 2018, 2020, 2022

✅ Which one is saturated hydrocarbon?
🟡 Repeated in: 2020, 2022, 2023


🌍 SECTION 3: Environmental Chemistry

✅ Gas used to destroy bacteria in water?
🟡 Repeated in: 2018, 2022, 2023, 2024

✅ Gas that protects earth from UV rays?
🟡 Repeated in: 2021, 2022, 2023

✅ Temporary hardness of water is due to?
🟡 Repeated in: 2020, 2021, 2024

✅ Permanent hardness removed by?
🟡 Repeated in: 2022, 2024

✅ Acid rain / pollutants related MCQs
🟡 Repeated in: 2021, 2023


BONUS (High Chance Questions)

🔥 Lactic acid is present in?
🔥 Drying agent for gases?
🔥 Which ion causes hardness in water?
🔥 Fat soluble vitamin?

Pro Tip:
Yeh MCQs har saal repeat ho rahe hain — inko zaroor prepare karo for 2026 Board Exams

📚 Notes + Guess Papers ke liye:
👉 ExamTips.pk

10th Class Chemistry Most Repeated MCQs 2018–2024 | Lahore Board Guess Paper 2026 🔥
Agar aap board exam me high marks lena chahte ho to yeh repeated MCQs zaroor prepare karein.

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