साइंस चैप्टर 2 का क्वेश्चन पेट में दर्द होने पर क्या प्रयोग करना चाहिए और क्यों
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It most commonly occurs as a crystalline decahydrate, which readily effloresces to form a white powder, the monohydrate. Pure sodium carbonate is a white, odorless powder that is hygroscopic
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