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12 grade chemistry others

When acetaldehyde reacts with phenylhydrazine, it forms

  • A. Acetaldoxime
  • B. Hydrazone
  • C. Phenylhydrazone
  • D. Methylamine

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1 Year agoGrade
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1 Answer

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ApprovedApproved Tutor Answer1 Year ago

When acetaldehyde reacts with phenylhydrazine, the product formed is known as a hydrazone. Specifically, the correct answer is C. Phenylhydrazone.

Understanding the Reaction

This reaction involves the nucleophilic attack of phenylhydrazine on the carbonyl group of acetaldehyde, leading to the formation of a stable hydrazone compound.

Key Points

  • Acetaldehyde is an aldehyde with the formula CH3CHO.
  • Phenylhydrazine is a reagent commonly used in organic chemistry for the identification of carbonyl compounds.
  • The resulting phenylhydrazone can be used for further chemical analysis or synthesis.

In summary, the interaction between acetaldehyde and phenylhydrazine results in the formation of phenylhydrazone, making option C the correct choice.


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is Pradeep Chemistry+Ncert sufficient for all of the theory of Jee Mains Chemistry?


Hi, I’m a self-study JEE 2027 aspirant with a large 11th backlog. Since I don’t think 6–8 hour one-shots are sufficient to cover the full theory + breadth of problem types of a JEE chapter, I’ve shifted from lecture-based preparation to book-based self-study.


I have a problem with using NCERT as my primary chemistry source. In my experience, it is concise and information-heavy, but often lacks detailed explanations, systematic organisation of concepts, and categorisation of problem types. This seems especially problematic for Physical and Organic Chemistry, where I feel that simply reading NCERT may not give enough depth or problem-solving preparation.


So I’m considering this approach:


Pradeep Chemistry → complete the chapter thoroughly from Pradeep → then read NCERT for that chapter → solve JEE Main PYQs/problems.


My main question is:


Is Pradeep + NCERT sufficient as the complete theory source for JEE Main-level Chemistry?


In other words, after thoroughly completing a chapter from Pradeep and then NCERT, can I consider the theory part of that chapter complete for JEE Main, with only PYQs/problem practice remaining?


I’m asking specifically about JEE Main level, not Advanced.


Also, if Pradeep is not sufficient, what specific gap does it leave, and what would you recommend as a better book-based alternative for self-study?

Grade 1212 grade chemistry others

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