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Which of the statements are correct?...

Which of the statements are correct?

A

(a) `Be_2C+H_2Orarr` Marsh gas

B

(b) `Al_4C_3+H_2Orarr` Gas is a content of CNG

C

(c) `CaC_2+H_2Orarr` Gas is used for welding purpose with `O_2` gas

D

(d) `Ca_3P_2+H_2Orarr` Gas is used in Holme signals with `CaC_2`

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D
a. Gives `CH_4(g)`, which is also called Marsh gas
b. It also gives `CH_4(g)`, which is a constituent of CNG.
c. It gives acetylene `(HC-=CH)` gas with `O_2` used for welding.
d. It gives phosphine `(PH_3)` gas used in Holme's signal.
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