Non Metal Chemistry || RRB Group-D, NTPC, RPF, REET L-2 BPSC || By BK Pathak

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Gm sir

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Physics ka bi one short aayega kya sir motion electricity me doubt h Thora

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Hi sir

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@bkpathakscience tq sir

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Sar aap kuchh ab bol nahin rahe hain

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Sharab kuchh bol nahin rahe hain

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Hi sir