Neco Model Questions Vol1 2023 Geography Question 42

Practice objective / multiple choice question 42 from the 2023 Neco Model Questions Vol1 Geography examination.

Neco Model Questions Vol1 2023 Geography Objective / Multiple Choice Medium Difficulty
Question 42 NECO_MODEL_QUESTIONS_VOL1 • 2023 • GEOGRAPHY • objective

A sedimentary rock sample is composed of three minerals. By volume it contains 45 % quartz (density \(2.65\ \text{g\,cm}^{-3}\)), 35 % feldspar (density \(2.55\ \text{g\,cm}^{-3}\)) and the remainder mica (density \(2.80\ \text{g\,cm}^{-3}\)). Determine the mass percentage of each mineral in the rock, giving your answers to one decimal place.

Answer Options

Correct Answer A. Quartz ≈ 45.1 %, Feldspar ≈ 33.7 %, Mica ≈ 21.2 %
B. Quartz ≈ 46.0 %, Feldspar ≈ 32.5 %, Mica ≈ 21.5 %
C. Quartz ≈ 44.2 %, Feldspar ≈ 34.0 %, Mica ≈ 21.8 %
D. Quartz ≈ 45.1 %, Feldspar ≈ 34.9 %, Mica ≈ 20.0 %
Correct Answer
A
Correct Option:
Quartz ≈ 45.1 %, Feldspar ≈ 33.7 %, Mica ≈ 21.2 %

About This Question

This is Neco Model Questions Vol1 2023 Geography Question 42. It is one of the objective questions from the 2023 Neco Model Questions Vol1 Geography examination.

Difficulty level: Medium .

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