Acetylene is manufactured by
A.reacting calcium carbide with liquid water
B.Sachsse process
C.Wulff process
D.all of these ansers
A.reacting calcium carbide with liquid water
B.Sachsse process
C.Wulff process
D.all of these ansers
A.Rise on the front side of the tank
B.Fall on the front side of the tank
C.Rise on the back side of the tank and fall on front
D.Fall on the back side of the tank and rise on front
E.Front side fluctuate considerably
A.Brass
B.Copper
C.Lead
D.Steel
E.Titanium
A.Temperature
B.Concentration of reactants
C.Catalyst
D.Number of molecules of reactants taking part in a reaction.
A.GOST
B.UNI
C.JIS
D.AENOR
E.CSN
A.Ethyl mercaptan
B.Pyridine
C.Naphthenic acid
D.Cumene
A.Plain glass sheet 3 mm thick
B.Plain glass sheet with wire mesh outside
C.Plain glass sheet with Venetion blind inside
D.Plain glass with curtain inside
A.Phosphor bronze
B.Beryllium copper
C.Alloy steel
D.K’ monel
E.Stainless steel
A.uranium
B.thorium
C.radium
D.polonium