कौन द्विविस्थापन अभिक्रिया है?(1) h₂ + cl₂ → 2hci(2) agno₃+ nacl → agcl + nano₃ (3)2mg + o₂ → 2mgo( 4)2h₂ + o₂→ 2h₂0
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32
Explanation:
because 2mgo 4 2hdown2 +o2 2h20 ok
h2×cl2 2hcI 2
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