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1
Total marks
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Pass Mark
0.33
Exam Category
Chemistry
Exam Type
Free
1)
निम्न में कौन सेट सही है?
सोल्डर -Pb+Al
जर्मन सिल्वर -Cu+Zn + C
डूरालूमिन -Al + Cu + Mg + Ag
गन – मेटल -Cu + Zn + Sn
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