Which of the following is crotonaldehyde ?

which of the following is not ?

which of the following is not ?

Which of the following is an example of condensation polymer (or) Which of the following is not an example of addition polymer

Which of the following is an example of condensation polymer (or) Which of the following is not an example of addition polymer

Which of the following is correct for the beam which enters the medium?

Which of the following is not an example of organochlorine which shows biomagnification?

Which of the following is not a lyophobic sol or which of the following is a lyophilic sol?