किस एक की अनुपस्थिति में प� – McqOptions

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1.	किस एक की अनुपस्थिति में पर्णहरित नहीं बनता -
A.	ताँबा
B.	जस्ता
C.	मैग्नीशियम
D.	मैंगनीज
Answer» D. मैंगनीज

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