Which of the following is the disadvantage(s) of hydrogen?
Inflammability
Leaking
Explosive limit
All of the mentioned
A leak not only means a loss of hydrogen but is, in addition, a decided hazard because of the inflammability and very wide explosive limits that hydrogen possesses. These limits are much wider than for most gases.
Therefore, the option number (4) is correct.
Study 40% syllabus and score up to 100% marks in JEE