BSC 1st Organic Chemistry Important Question in Hindi 2025 Batch

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As you know organic chemistry is a very mind-boggling subject, so in this article we have collected BSC organic Chemistry Important Question which will help you in your studies, if you memorize the important questions mentioned in this article once, you can understand that 60% of the syllabus will be covered, so read this article till the end to read the complete list of BSC 1st Organic Chemistry Important Question in Hindi 2025.

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BSC 1st Organic Chemistry Important Question in Hindi 2025

1. कार्बन की अधिकतम संयोजकता कितनी होती है? (What is the maximum valency of carbon?)

   उत्तर (Answer): 4

2. एथीन का आणविक सूत्र क्या है? (What is the molecular formula of Ethene?)

   उत्तर (Answer): C₂H₄

3. बेंजीन का सामान्य सूत्र क्या है? (What is the general formula of Benzene?)

   उत्तर (Answer): C₆H₆

4. ऐल्केन्स के सामान्य सूत्र को क्या कहते हैं? (What is the general formula of Alkanes?)

   उत्तर (Answer): C_nH_2n+2

5. मेथेन में कितने हाइड्रोजन परमाणु होते हैं? (How many hydrogen atoms are present in Methane?)

   उत्तर (Answer): 4

6. कार्बन-कार्बन डबल बॉन्ड को क्या कहते हैं? (What is the carbon-carbon double bond called?)

   उत्तर (Answer): ऐल्कीन (Alkene)

7. इथाइल ऐल्कोहॉल का आणविक सूत्र क्या है? (What is the molecular formula of Ethyl alcohol?)

   उत्तर (Answer): C₂H₅OH

8. कार्बोक्सिल समूह का सूत्र क्या है? (What is the formula of the Carboxyl group?)

   उत्तर (Answer): -COOH

9. आईसोप्रोपाइल समूह का सूत्र क्या है? (What is the formula of Isopropyl group?)

   उत्तर (Answer): -CH(CH₃)₂

10. साबुन बनाने की प्रक्रिया को क्या कहते हैं? (What is the process of soap making called?)

    उत्तर (Answer): सैपोनिफिकेशन (Saponification)

11. बेंजीन रिंग में कितने π-बॉन्ड होते हैं? (How many π-bonds are present in a benzene ring?)

    उत्तर (Answer): 3

12. ऐल्कोहॉल के विघटन से क्या प्राप्त होता है? (What is obtained from the oxidation of alcohol?)

    उत्तर (Answer): एल्डीहाइड (Aldehyde)

13. फॉर्मिक एसिड का आणविक सूत्र क्या है? (What is the molecular formula of Formic acid?)

    उत्तर (Answer): HCOOH

14. ऐल्काइन्स का सामान्य सूत्र क्या है? (What is the general formula of Alkynes?)

    उत्तर (Answer): C_nH_2n-2

15. एथाइल समूह का सूत्र क्या है? (What is the formula of the Ethyl group?)

    उत्तर (Answer): C₂H₅

16. इथेनॉल का सामान्य नाम क्या है? (What is the common name of Ethanol?)

    उत्तर (Answer): ऐल्कोहॉल (Alcohol)

17. ऐल्काइन्स में कितने ट्रिपल बॉन्ड होते हैं? (How many triple bonds are present in Alkynes?)

    उत्तर (Answer): 1

18. किस प्रक्रिया से ऐल्केन्स को ऐल्काइन्स में परिवर्तित किया जा सकता है? (By which process can Alkenes be converted to Alkynes?)

    उत्तर (Answer): डिहाइड्रोजनेशन (Dehydrogenation)

19. पेप्टाइड बंधन किसके बीच होता है? (Peptide bond is formed between which two groups?)

    उत्तर (Answer): -NH₂ और -COOH

20. इथाइन का आणविक सूत्र क्या है? (What is the molecular formula of Ethyne?)

    उत्तर (Answer): C₂H₂

BSC 1st Organic Chemistry Important MCQ

1. Which of the following is the simplest alkane?

   • Ethane
   • Methane
   • Propane
   • Butane

2. What is the IUPAC name of CH₃CH₂OH?

   • Ethanol
   • Methanol
   • Propanol
   • Butanol

3. Which of the following is an aromatic hydrocarbon?

   • Methane
   • Ethylene
   • Benzene
   • Acetylene

4. What is the general formula of alkanes?

   • C_nH_2n
   • C_nH_2n+2
   • C_nH_2n-2
   • C_nH_2n+1

5. Which of the following compounds contains a carbon-carbon triple bond?

   • Ethylene
   • Acetylene
   • Methane
   • Propane

6. Which functional group is present in aldehydes?

   • -OH
   • -COOH
   • -CHO
   • -NH₂

7. Which of the following is the molecular formula of propene?

   • C₃H₈
   • C₃H₆
   • C₃H₄
   • C₃H₁₀

8. Which of the following is the main constituent of natural gas?

   • Methane
   • Ethane
   • Propane
   • Butane

9. The general formula for alcohols is:

   • R-OH
   • R-CHO
   • R-COOH
   • R-NH₂

10. Which reagent is used for the detection of aldehydes?

    • Tollen’s reagent
    • Fehling’s solution
    • Benedict’s solution
    • All of the above

11. Which compound is formed by the hydration of ethene?

    • Ethanol
    • Ethyne
    • Ethane
    • Propanol

12. Which of the following acids is the simplest carboxylic acid?

    • Acetic acid
    • Formic acid
    • Propanoic acid
    • Butanoic acid

13. The addition of hydrogen to an alkene forms:

    • Alkane
    • Alkyne
    • Alcohol
    • Aldehyde

14. Which of the following is a saturated hydrocarbon?

    • Ethene
    • Methane
    • Propene
    • Acetylene

15. Which of the following is an electrophile?

    • NH₃
    • Cl^–
    • NO₂⁺
    • OH^–

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