Here we have a given Class 12 Chemistry Important Questions for Maharashtra Board HSC Examination 2024. Every students want to score good marks in Class 12 Board Exam,but number of students don't know how to score good marks. Dear students, following given questions had been asked in earlier HSC Board Examinations. From this post, you will know which type of questions had been asked in earlier Board Exams and same questions or same type of questions will be asked in your upcoming examination. If you study all these questions, you will get very good marks in your board examinations, Because so many questions from the following given questions will be asked in your upcoming examination.Therefore go through our Class 12 Chemistry Important Questions which are given in chapter-wise manner and simply try to solve these questions to score very good marks in Chemistry and obviously, you will! Best wishes to all dear students for your upcoming Maharashtra State Board Exam 2024.

यहां हमारे पास महाराष्ट्र बोर्ड HSC परीक्षा 2024 के लिए कक्षा 12वीं के Chemistry के महत्वपूर्ण प्रश्न दिए गए हैं। प्रत्येक छात्र कक्षा 12वीं की बोर्ड परीक्षा में अच्छे अंक प्राप्त करना चाहते हैं, लेकिन कई छात्र यह नहीं जानते कि अच्छे अंक कैसे प्राप्त करें। प्रिय छात्रों, नीचे दिए गए प्रश्न पिछले एचएससी बोर्ड परीक्षाओं में पूछे गए थे। इस पोस्ट से आप जानेंगे कि पिछली बोर्ड परीक्षाओं में किस प्रकार के प्रश्न पूछे गए थे और आपकी आगामी परीक्षा में भी इसी प्रकार के प्रश्न पूछे जाएंगे। यदि आप इन सभी प्रश्नों का अध्ययन करते हैं, तो आप अपनी बोर्ड परीक्षाओं में बहुत अच्छे अंक प्राप्त करेंगे, क्योंकि निम्नलिखित दिए गए प्रश्नों में से बहुत सारे प्रश्न आपकी आगामी परीक्षा में पूछे जाएंगे। इसलिए हमारे कक्षा 12 के Chemistry के महत्वपूर्ण प्रश्नों को देखें जो अध्याय में दिए गए हैं | Chemistry में बहुत अच्छे अंक प्राप्त करने के लिए इन प्रश्नों को बुद्धिमान तरीके से हल करने का प्रयास करें और जाहिर है, आप करेंगे! सभी प्रिय छात्रों को आपकी आगामी महाराष्ट्र राज्य बोर्ड परीक्षा 2024 के लिए शुभकामनाएं।

Class 12 Chemistry Important Questions | Chapter 11 Alcohols, Phenols And Ethers 

• How is cumene converted into phenol? Give test to distinguish between phenol and ethanol. (March 2008, March 2010, Oct. 2010)

• How are monohydric alcohols classified? Give suitable examples. Draw the structure of 2-methyl-propan-1-ol. (March 2008)

• From methyl magnesium iodide how are the ethanol and propan-2-ol are prepared? (Oct. 2008)

• What is the action of the following on phenol?

(a) Bromine in CS2

(b) Conc. H2SO4 in presence of Conc. HNO3

(c) Conc. H2SO4, at room temperature. (Oct. 2008) 

• What is the action of following on 2-methyl propan-2-ol?

(a) 20% H2SO4 at 360 K

(b) NaBr and conc. H2SO4 (March 2009, Oct 2008)

• Write the chemical test to distinguish between propan-1-ol, propan-2-ol and 2-methyl-propan-2 ol. (March 2009)

• What are phenols? How is carbolic acid prepared from aniline? Write a chemical test to distinguish between alcohol and phenol. (March 2009)

• What is the action of the following reagents on ethanol?

(a) Thionyl chloride

(b) Mixture of red phosphorus and bromine 

(c) Acidified potassium dichromate.      (Oct. 2009, March 2011)

• How is carbolic acid prepared from benzene sulphonic acid?

What is the action of conc. H2SO4 on phenol at 373 K? (Oct. 2009)

• How is phenol prepared from

(a) Aniline

(b) Chlorobenzene      (March 2010, Oct. 2010)

• What is the action of sulphuric acid at different temperatures and different concentrations on the following compounds?

(a) Ethanol

(b) Propan-2-ol

(c) 2-Methyl-propan-2-ol

( March 2010)

• How are ethyl alcohol, iso-propyl alcohol and tertiary butyl alcohol are distinguished from each other? (Oct. 2010)

• How is carbolic acid prepared from cumene? Give two of uses phenol. (March 2011) 

• Boiling point of alcohols are much higher than those of the of corresponding alkanes. Explain. (March 2011)

• Write IUPAC name of ethyl-methyl ether and explain action of cold HI and hot HI on it. (March 2008)

• How will you prepare diethyl ether by continuous etherification process? (Oct. 2008)

• What are ethers? (Oct. 2008, March 2011)

• Write a note in Williamson's synthesis. Mention two uses of ethoxyethane. (March 2009)

• What happens when, ethyl methyl ether is hydrolysed by using dil. H2SO4? (Oct. 2009)

• How are simple ethers and mixed ethers prepared by Williamson's synthesis? (March 2010)

• What is the action of dilute sulphuric acid under pressure, on ethoxy ethane? (Oct. 2010) 

• How is ethyl methyl ether prepared from

(a) Diazomethane

(b) Sodium ethoxide? (March 2011)

• How is ethanol prepared from methanal by using Grignard reagent? (March 2013)

• Explain the mechanism of action of hydroiodic acid on 3-methylbutan-2-ol. (March 2013) 

• How is phenol converted into the following?

(a) benzene

(b) benzoquinone

(c) picric acid (Oct. 2013)

• How is methoxy benzene prepared from carbolic acid? (Oct. 2013)

• Write the structural formula and IUPAC names of all possible isomers of the compound with molecular formula C3H8O.

• Write 'two' used of phenol. (March 2014)

• How is methoxyethane prepared from:

(a) Methyl iodide

(b) Diazomethane (March 2014)

• What is the action of the following reagents on phenol -

(a) Bromine in CS2 at low temperature.

(b) Conc. H2SO4 at room temperature. (Oct. 2014)

Also read : Class 12 Physics Important Questions

• How is carbolic acid prepared from the following compounds:

(1) Aniline

(2) Chlorobenzene and steam at 698K? (March 2015) 

• Mention 'two' physical properties of carbolic acid. (March 2015)

• Write the reactions involved in dehydration of 1°, 2° and 3° alcohols. (March 2016)

• How is diethyl ether prepared by continuous etherification process? (March 2017)

• Define carbolic acid.

How is carbolic acid is prepared from benzene sulphonic acid? (March 2017)

• Why  ethanol has higher boiling point than ethane? (March 2018)

• Write a chemical equation for the action of neutral ferric chloride on phenol. (March 2018)

• What are ethers?  How they are classified? (March 2019)

• How is phenol prepared from cumene? (March 2019)

• Write chemical equation for Fischer esterification. (March 2019)

• What is the action of conc. H2SO4 on ethanol at

(i) 413 K

(ii) 453 K? (March 2019)

• Explain continous etherification process for the preparation of diethyl ether. (March 2020)

• How is ethanol prepared from the following compounds? 

a) Ethanal

b) Ethene 

c) Bromoethane (March 2020)

Also Read: Class 12 Biology Important Questions

👉 Students are suggested to go through our Class 12 Chemistry Important Questions to score more in your upcoming 2024 Board Examination. 👇👇

Class 12 Chemistry Important Questions Chapter-wise

 Click on the following links to get Class 12 Chemistry Important Questions.👇👇

 

• Chapter 1 - Solid States

• Chapter 2 - Solutions

• Chapter 4 - Chemical thermodynamics

• Chapter 5 -  Electrochemistry

• Chapter 6 -  Chemical Kinetics

• Chapter 7 - Group 16,17 & 18 Elements

• Chapter 8 -  Transition And Inner Transition Elements

• Chapter 9 -  Coordination Compounds

• Chapter 10 - Halogen Derivatives

• Chapter 11 -  Alcohols,Phenols & Ethers

• Chapter 12 - Aldehydes, Ketones & Carboxylic Acids

• Chapter 13 - Amines

• Chapter 14 -  Biomolecules

• Chapter 15 -  Polymers