Which of the following is a superfluid ?

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

Which of the following is a positive overlap which leads to bonding?

Which of the following is a positive overlap which leads to bonding ? .