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SSC Stenographer 2022 PYQ — Question 121

SSC Stenographer - 18 Nov 2022 - Shift 2 • General Awareness • Q121

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Match column A with column B.

Column A (element)             Column B (% in Earth's crust)
i. Si                                           a. 46.6%
ii. O                                           b. 27.7%
iii. Al                                         c. 5.0%
iv. Fe                                         d. 8.13%

Show answer & explanation

Correct answer: A

Explanation

The correct answer is Option 1 i.e. i-b, ii-a, iii-d, iv-c

Here is the correct match for the elements with their percentage abundance in the Earth's crust: 

i. Si matches with b. 27.7%

ii. O matches with a. 46.6%

iii. Al matches with d. 8.13%

iv. Fe matches with c. 5.0%

Oxygen and Silicon are the two most abundant elements in the Earth's crust, collectively making up over 74% of its mass, primarily in the form of silicate rocks. Aluminium and Iron are the third and fourth most abundant elements, respectively.