Asked: 38th B.P.S.C. (Pre) 1992medium Level
QUESTION STATEMENT:द्विभाषी / Bilingual
तब कोई प्रतिक्रिया नहीं होती है जब भाप गुजरती है ऊपर से—
No reaction takes place when steam is passed over:
SELECT CORRECT OPTION:
A
एल्युमीनियम के
Aluminium
B
तांबे के
Copper
Correct
C
कार्बन के
Carbon
D
लोहे के
Iron
Official Solution & Explanation:
Correct Answer: Option B(तांबे के)
तांबा (कॉपर) विद्युत रासायनिक श्रेणी में हाइड्रोजन से नीचे स्थित है, अतः यह जल अथवा भाप के साथ बिल्कुल भी अभिक्रिया नहीं करता है।
Copper lies below hydrogen in the electrochemical reactivity series, so it does not react with water or steam even at high temperatures.
Subject: General Science•Topic: Metals, Minerals, Ores: Properties and Uses•Subtopic: Metals, Minerals, Ores: Properties and Uses
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