Correct answer
D. Hydrogen
Explanation
Hydrogen is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Coke is made by heating coal in the absence of air at__________?
Unit of surface tension in cgs system is?
In which type of solar eclipse the Sun’s center is covered by the moon, leaving its edges uncovered?
The density of Air is_____________?
The approximate intensity level of the sound which can cause damage to the ear drum is?
Which of the following vitamin is known as Riboflavin?