CBSE Class 12 Chemistry Worksheet - Aldehyde,Ketones and acids

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CBSE Class 12 Chemistry Worksheet - Aldehyde,Ketones & acids. CBSE issues sample papers every year for students for class 12 board exams. Students should solve the CBSE issued sample papers to understand the pattern of the question paper which will come in class 12 board exams this year. The sample papers have been provided with marking scheme. It’s always recommended to practice as many CBSE sample papers as possible before the board examinations. Sample papers should be always practiced in examination condition at home or school and the student should show the answers to teachers for checking or compare with the answers provided. Students can download the sample papers in pdf format free and score better marks in examinations. Refer to other links too for latest sample papers.

Q.1 Write the IUPAC name of the following compound:- CH3-O-CH2-CH(OH)-CH2-CHO [1]

Q.2 Although phenoxide ion has more no. of resonating structures than carboxylate ion , even though carbxylic

acid is a stronger acid why ? [1]

Q.3 Why Carboxylic acid have higher boiling point than alcohols as alcohol forms strongest inter molecular

hydrogen bonding?[1]

Q.4 Which acid is stronger and why? F3C-C6H4COOH and CH3C6H4COOH .[1]

Q.5 Complete the following reactions:- [2] Red P

(i) CH3CH2MgBr + CO2 ---------> (ii) CH3CH2COOH + Cl2 --------> 

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