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Which of the statements are correct?
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a
Be2C+H2O→ Marsh gas
b
Al4C3+H2O→ Gas is a content of CNG
c
CaC2+H2O→ Gas is used for welding purpose with O2 gas
d
Ca3P2+H2O→ Gas is used in Holme signals with CaC2
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detailed solution
Correct option is