Question map
Not attempted Correct Incorrect ★ Bookmarked
Loading…
Q88 (CAPF/2023) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Basic chemical principles

Which one is the most abundant of all the elements on Earth?

Result
Your answer: —  Â·  Correct: D
Explanation

Oxygen is the most abundant element on Earth, both in the Earth's crust and as a major constituent of the planet as a whole. In the Earth's crust, oxygen is the most prevalent element, accounting for approximately 46.1% to 46.6% of its mass [1]. It is followed by silicon (about 27.7% to 28.2%) and aluminium (about 8.1% to 8.23%) [1]. When considering the entire Earth (including the core and mantle), iron is often cited as the most abundant by mass (34.6%), with oxygen following closely at 29.5% [1]. However, among the options provided (Silicon, Aluminium, Carbon, Oxygen), oxygen is consistently the most abundant across all geological reservoirs [1]. Carbon is relatively rare on Earth, making up less than 0.2% of the crust's mass. Therefore, oxygen is the correct choice as the most abundant element among the listed options.

Sources

  1. [1] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 4: Earths Interior > The Crust > p. 53
How others answered
Each bar shows the % of students who chose that option. Green bar = correct answer, blue outline = your choice.
Community Performance
Out of everyone who attempted this question.
0%
got it right
✓ Thank you! We'll review this.

SIMILAR QUESTIONS

CDS-II · 2015 · Q41 Relevance score: 2.87

Which of the following elements are found in highest and lowest quantities respectively in the crust of the earth?

CDS-II · 2025 · Q89 Relevance score: 2.52

Arrange the following major elements present in the Earth's crust, in ascending order, in weight percentage : 1. Aluminium 2. Calcium 3. Silicon 4. Oxygen Select the answer using the code given below :

IAS · 1997 · Q104 Relevance score: 2.44

Which one of the following is present in the largest amount in terms of per cent by mass in the earth’s crust ?

CDS-II · 2013 · Q23 Relevance score: 0.94

Which element forms the highest number of compounds in the periodic table ?

IAS · 2009 · Q48 Relevance score: -0.45

In the structure of planet Earth, below the mantle, the core is mainly made up of which one of the following ?