P-Block Elements Ques 434
Question: Which of the following gas is/are called rare gas
[CPMT 2000; Pb. CET 2002]
Options:
A) Ne
B) He
C) Kr
D) All of these
Show Answer
Answer:
Correct Answer: D
Solution:
He, Ne, and Kr all are found in very little amount in atmosphere, so all are called rare gas.