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Kya dhatoo amalo se abhikriya kerti …

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Kya dhatoo amalo se abhikriya kerti hai?

Posted by Gunjan Kumari 5 years, 3 months ago

CBSE > Class 10 > विज्ञान

2 answers

Pankaj Roy 5 years, 3 months ago

Ha

Sia ? 5 years, 3 months ago

धातु जब एसिड के साथ प्रतिक्रिया करते हैं तो साल्ट और हाइड्रोजन गैस का निर्माण होता है।
Metal + Acid ⇨ Salt + Hydrogen
जब नाइट्रिक एसिड किसी मेटल के साथ अभिक्रिया करता है तो हाइड्रोजन गैस नहीं बनती है। ऐसा इसलिये होता है क्योंकि नाइट्रिक ऐसिड एक प्रबल ऑक्सीडाइजिंग एजेंट होता है। यह हाइड्रोजन गैस का ऑक्सीकरण कर देता है जिसके कारण जल बन जाता है। इसके अलावा, नाइट्रिक ऐसिड का अवकरण हो जाता है और इससे नाइट्रोजन का कोई एक ऑक्साइड <i>(N₂O, NO, NO₂)</i> बन जाता है। लेकिन मैगनीज और मैगनीशियम बहुत ही तनु नाइट्रिक एसिड से अभिक्रिया करके हाइड्रोजन गैस का निर्माण करते हैं।
जब जिंक के दानेदार टुकड़ों के ऊपर तनु सल्फूरिक एसिड को डाला जाता है तो बुलबुले बनते हैं और हाइड्रोजन गैस का निर्माण होता है। इस अभिक्रिया में जिंक सल्फेट बनता है।
<i>Zn + H₂SO₄ ⇨ ZnSO₄ + H₂</i>

ANSWER

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