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Tausif Raza

UP Board 10th Class 2021 (For Hindi Medium Students)
About UP Board Crash Course
3 years ago

bharjan kiss kahtay hai

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Dileep Vishwakarma

3 years ago

भर्जन (roasting) वह प्रक्रिया जिसमें वायु की अधिकता में सल्फाइड के अयस्कों को गलनांक से अधिक ताप पर गर्म करके उनके ऑक्साइड में बदलने की प्रक्रिया को भर्जन कहते है।

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Aditya Yadav

3 years ago

what

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Aditya Yadav

3 years ago

what's mean

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Aditya Yadav

3 years ago

I can not understand your mean

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Aditya Yadav

3 years ago

you upload a picture of your question

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Aditya Yadav

3 years ago

please ask your question clearly

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