CH3
CH2
CH4
C2H24
Correct answer is A
CxHy + (x + y/4)O2 = XCO2 + (y/2)H2O
4.4 2.7
according to the equation 44x = 9y
Carbon Hydrogen
mole given ratio = (44)/(44), (2.7)/(9) = 0.1,0.3
Empirical formula = (0.1)/(0.1), (0.3)/(o.1) = 1,3 ; CH3
Sodium hydroxide is prepared commercially from sodium chloride solution by?
electrolysis using mercury as cathode
hydrolysis in steam using a catalyst
electrolysis using iron as anode
treating sodium chloride with ammonia and carbon (IV) oxide
Correct answer is A
No explanation has been provided for this answer.
Which of the additives could improve the quality of steel?
Silicon
Sulphur and phosphorus
Carbon
Chromium and nickel
Correct answer is D
No explanation has been provided for this answer.
The removal of rust from iron by treatment with tetraoxosulphate (IV) acid is based on the?
hydrolysis of the iron
reaction of acid with base
oxidationof the rust
dehydration of the iron
Correct answer is D
No explanation has been provided for this answer.
a poisionous gas
an oxidizing agent
electronegative in nature
highly reactive
Correct answer is D
No explanation has been provided for this answer.