क्योंकि अगर आप हाइड्रोजन और ऑक्सीजन से पानी को प्रयोगशाला में बनाते हैं तो यह किसी काम के लिए उपयोगी नहीं होता है ।
ओकेकी
Mene uper quiz dal diya hu ap aa jao
मैंने प्रश्नोत्तरी को एपी कम के ऊपर रखा है
M quiz daal rhi hu ooper okk
मैं क्विज़ कूपर डाल रहा हूँ ओके
Hello umar
हैलो उमर
Because if you make water from hydrogen and oxizen in laboratory then it is not useful for any work.
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Okk