How many amongst the following carbides do not give methane on hydrolysis `CaC_(2),Mg_(2)C_(3),Be_(2)C.`

The hydrolysis of Mg_(2)C_(3) produces

Which of the following is obtained on hydrolysis of Mg_(2)C_(3) ?

Be_(2)C on hydrolysis yields

Which of the following is a formula of methanides: (a) Be_(2)C (b) CaC_(2) (c) Mg_(2)C_(3) (d) Al_(4)C_(3)

Polythene can be produced from calcium carbide according to the following sequence of reactions. CaC_(2)+2H_(2)Orarr Ca(OH)_(2)+C_(2)H_(2), C_(2)H_(2)+H_(2)rarr C_(2)H_(4), nC_(2)H_(4)rarr(C_(2)H_(4))n The mass of polythene which can be produced from "20.0 kg of "CaC_(2) is :

Polyethene can be produced from calcium carbide according to the following sequence of reactions CaC_(2)+2H_(2)OtoCa(OH)_(2)+C_(2)H_(2) C_(2)H_(2)+H_(2)overset(Pd//BaSO_(4)//S" ")(to)C_(2)H_(4) underset("Ethene")(C_(2)H_(4)tounderset("Polythene")[CH_(2)-CH_(2)]n Calculate the mass of polyethene produced from 20 kg of CaCO_(2) .

Be_(2)C + H_(2)C to