तांबे आणि जस्त यांचे संमिश्र ________ म्हणून ओळखले जाते.

  1. पितळ
  2. निकेल
  3. कांस्य
  4. ड्युराल्युमिन
  5. वरीलपैकी नाही

Answer (Detailed Solution Below)

Option 1 : पितळ
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Detailed Solution

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स्पष्टीकरण:

  • संमिश्र हे दोन किंवा अधिक धातूंचे किंवा अधातूंचे एकसंध मिश्रण असते.
  • संमिश्र हे इतर मूलद्रव्यांसह धातूचे मिश्रण असते आणि दोन्हीचे संयोजन आवश्यक गुणधर्मांद्वारे नियंत्रित केले जाते.
  • खालील तक्त्यामध्ये काही संमिश्रे व त्यांचे धातू दिलेले आहेत:
संमिश्र त्यांचे धातू
पितळ तांबे आणि जस्त
कांस्य तांबे आणि कथील
जर्मन सिल्व्हर तांबे, जस्त आणि निकेल
निकेल पोलाद लोह आणि निकेल

Important Points

ड्युराल्युमिन: हे ॲल्युमिनिअम धातूंचे संमिश्र आहे. यामध्ये 3.5 ते 4.5% तांबे, 0.4 ते 0.7% मँगनीज, 0.4 ते 0.7% मॅग्नेशिअम आणि उर्वरित ॲल्युमिनिअम असते. हे विमान उद्योगामध्ये घडाई, ठसापत्री, गज, पत्री, रिबिट इत्यादींसाठी मोठ्या प्रमाणावर वापरले जाते.

हिंडालिअम: यामध्ये 5% तांबे आणि उर्वरित ॲल्युमिनिअम असते. हे डबे, भांडी, नलिका, रिबिट इत्यादींसाठी वापरले जाते.

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