Answer:
( C )
2CuO+Cu₂S - - - - > 4Cu+ SO₂2CuO+Cu₂S−−−−>4Cu+SO₂
Cu + HNO_3 → Cu(NO_3)_2 - -- ^{NH_3} -- > [Cu(NH_3)_4] ^{2 + }Cu+HNO
3
→Cu(NO
)
2
−−−
NH
−−>[Cu(NH
4
]
2+
CUCO_3 - - - > CuO + CO₂CUCO
−−−>CuO+CO₂
CO₂ + Ca(OH)₂ →→→ CaCO_3 - - ^{CO₂ + H₂O} - > Ca(HCO_3)_2CO₂+Ca(OH)₂→→→CaCO
−−
CO₂+H₂O
−>Ca(HCO
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Answer:
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Answer:
( C )
2CuO+Cu₂S - - - - > 4Cu+ SO₂2CuO+Cu₂S−−−−>4Cu+SO₂
Cu + HNO_3 → Cu(NO_3)_2 - -- ^{NH_3} -- > [Cu(NH_3)_4] ^{2 + }Cu+HNO
3
→Cu(NO
3
)
2
−−−
NH
3
−−>[Cu(NH
3
)
4
]
2+
CUCO_3 - - - > CuO + CO₂CUCO
3
−−−>CuO+CO₂
CO₂ + Ca(OH)₂ →→→ CaCO_3 - - ^{CO₂ + H₂O} - > Ca(HCO_3)_2CO₂+Ca(OH)₂→→→CaCO
3
−−
CO₂+H₂O
−>Ca(HCO
3
)
2