Quick practice
Question 1 of 5
Choose the correct sequence of elements present in human body in decreasing order?
A
Carbon, hydrogen, Oxygen, nitrogen
B
Carbon, hydrogen, nitrogen, Oxygen
C
Oxygen, carbon, hydrogen, nitrogen
D
Oxygen, carbon, nitrogen, hydrogen
Get unlimited practice with NDA subscription
Boost your performance with adaptive practice tests
Practice every concept in the syllabus
Compare your speed and accuracy with your peers
Download the app and practice on the go