Asked: R.O./A.R.O. (Pre) Exam. 2017medium Level
QUESTION STATEMENT:द्विभाषी / Bilingual
निम्नलिखित में से कौन-सा युग्म सही सुमेलित नहीं है?
Which of the following pairs is not correctly matched?
SELECT CORRECT OPTION:
A
एल्युमीनियम - बॉक्साइट
Aluminium - Bauxite
B
कॉपर - सिनेबार
Copper - Cinnabar
Correct
C
जिंक - कैलामाइन
Zinc - Calamine
D
आयरन - हेमैटाइट
Iron - Hematite
Official Solution & Explanation:
Correct Answer: Option B(कॉपर - सिनेबार)
सिनेबार ($HgS$) पारे (मरकरी) का मुख्य अयस्क है, कॉपर का नहीं। कॉपर के प्रमुख अयस्क क्यूप्राइट, कॉपर पाइराइट्स आदि हैं।
Cinnabar ($HgS$) is the principal ore of mercury, not copper. Copper ores include cuprite and copper pyrites.
Subject: General Science•Topic: Metals, Minerals, Ores: Properties and Uses•Subtopic: Metals, Minerals, Ores: Properties and Uses
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