प्रश्न 6. एक तत्व Y समूह 1 से संबंध रखता है । इसके आक्साइड का सूत्र लिखो । answer
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4
Answer:
M2O, because first A group valancy is 1 and O has 2 valancy
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0
Answer:
ऑक्साइड का सूत्र `Y_(2)O_(3)` होगा।
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