Which of the following statements is not compatible with arenes?

Which one of the following subshells is not compatible with a principal quantum number of n=4 ?

Which of the following is an arene?

Which of the following is not an arene?

Which of the following statements can be filled in the decision box? (a) is it hot ? (b) how much is the cost of an apple? (c ) is the price less than Rs 200 (d) you are going to movie aren 't you?

The net external torque on a system of particles about an axis is zero. Which of the following are compatible with it?

Net external torque on a system of particles about an axis is zero. Which of the following are compatible with it ?