Which one of the following substances is a liquid fuel used in rocket engines?

a. Potassium perchlorate
b. Liquid oxygen
c. Ammonia
d. Codium nitrate

Answer :

b. Liquid oxygen

By AndLearning

Highly Professional Blogging website which is offering Maths Formulas for all Students who are studying in class 6 to 12 and above. it is also helpful for students who are ready for competitive, Engineering, and Government exams. Subscribe My YouTube Channel for Online Study: SabkuchhLearn