Which of the following are coorect :

which of the following is correct for the following graph?

Which of the following are closed curves? Which of them are simple?

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

Choose the coorect altertnative answer for each of the following question: Which of the following collection is a set?

Which of the following are low spin complexes which follow EAN rule?

Which of the following is/are not the products in the following reaction?

Which of the following is/are not the products in the following reaction?