alleryتیزاب کا استعمال کرتے ہوئے دھاتوں سے زنگ کو ہٹانا کیا کہا جاتا ہے؟
Aجستی بنانا
Bاینیلنگ
Cسمیلٹنگ
Dاچار
Answer & Solution
Correct answer: D. اچار
زنگ اور سنکنرن کو دور کرنے کے لیے تیزاب سے دھات کا علاج کرنا اچار کہلاتا ہے۔
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