कौन सा तत्व सभी अम्लों में � – McqOptions

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1.	कौन सा तत्व सभी अम्लों में निश्चित रुप से उपस्थित होता है -
A.	हाइड्रोजन
B.	क्लोरीन
C.	सल्फर
D.	सोडियम
Answer» B. क्लोरीन

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