State which of the following collections are sets.
All even numbers

State which of the following collections are sets. The collection of odd positive integers. 1, 3, 5, …..

State which of the following collections are sets. Stars in the sky

State which of the following sets are empty {x:x is a natural number, x 8}

State which of the following sets are empty and which are not? The set of lines passing through a given point.

Which of the following is not a correct set of quantum numbers?

State which of the following sets are empty and which are not? Set of even prime numbers.

State which of the following sets are empty and which are not? Set of odd natural numbers divisible by 2.

State which of the following sets are empty Set of integers which lie between 5 and 6.

State which of the following sets are empty The set of lines which are parallel to the Y-axis.

The set of all real numbers is