Question : The most abundant element is
Option 1: Calcium
Option 2: Silicon
Option 3: Oxygen
Option 4: Nitrogen
Correct Answer: Oxygen
Solution : The correct option is Oxygen.
After hydrogen and helium, oxygen is the third most abundant element in the universe (by mass). It also makes up the most abundant element (by mass) in the Earth's crust, accounting for nearly half of the crust's mass. Around 89% of the world's oceans are made up of oxygen, and 20% of the atmosphere is made up of diatomic oxygen gas.
Result | Eligibility | Application | Selection Process | Cutoff | Admit Card | Preparation Tips
Question : Identify an anomaly element that belongs to both Group 1 and Group 17.
Question : Ozone consists of which of the following?
Question : From the given options, choose the one which is not a product of the decomposition reaction of Lead nitrate.
Question : Carbon monoxide is an inflammable gas. Which one of the following is also inflammable?
Question : Select the option in which all the words are spelt correctly.
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile