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रसायन विज्ञान प्रश्नोत्तर Chemistry Quiz -39

प्रश्न :- . कार्बन का परमाणु क्रमांक 6 तथा परमाणु भार 12 है । इसके नाभिक में कितने प्रोटॉन होते है । (A) 12  (B) 18  (C) 6  (D) 2 Ans:- (C) 6 प्रश्न :- किसी तत्व के परमाणु में 2...

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