সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
Among the following which is the purest form of iron?
Among the following which is the purest form of iron?
- ক. grey cast iron
- খ. wrought iron
- গ. steel
- ঘ. white cast iron
সঠিক উত্তরঃ wrought iron
এ সম্পর্কিত আরো প্রশ্ন দেখুন
- One of the following metals, which one pollutes the air of a busy city?
- Which of the following statements is true?
- The atom is made of---
- Which of the following is the main source of energy of the sun?
- To glavanise iron, iron is coated with which of the followiing?
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Basic Information of Daily Science, Inventions and...