01Which method is generally used to extract highly reactive metals?अत्यधिक अभिक्रियाशील धातुओं के निष्कर्षण के लिए सामान्यतः किस विधि का उपयोग किया जाता है?
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Science
Corrosion and extraction basics
In this Class 10 Science topic from Metals and Non-metals, students learn how corrosion gradually damages metals through reactions with air, moisture, or other environmental factors. They explore everyday examples such as rusting, identify conditions that speed up corrosion, and understand prevention methods including painting, oiling, galvanising, alloying, and electroplating. The topic also introduces how useful metals are obtained from ores through concentration, conversion to oxides, reduction, and refining, with extraction methods linked to the metal’s reactivity.
Easy · Level 1 · 5 questions
Practice questions
02What is the process of removing impurities from ore called?अयस्क से अशुद्धियाँ हटाने की प्रक्रिया क्या कहलाती है?
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Answer and explanationउत्तर और व्याख्या
03What is required for rusting of iron?लोहे में जंग लगने के लिए किसकी आवश्यकता होती है?
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Answer and explanationउत्तर और व्याख्या
04What is the process of coating iron with zinc to prevent rusting called?जंग रोकने के लिए लोहे पर जस्ता चढ़ाने की प्रक्रिया क्या कहलाती है?
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Answer and explanationउत्तर और व्याख्या
05What is mainly required for rusting of iron?लोहे में जंग लगने के लिए मुख्य रूप से किसकी आवश्यकता होती है?
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