The product of the reaction between C 2H5OH and concentrated H2SO 4 at 170oC is
(C2H5)2SO4
CH 3CH 2HSO 4
(C2H5)2O
CH2 = CH 2
Correct answer is D
No explanation has been provided for this answer.
Which of the following raw materials is used in the plastic industry ?
Calcium
Ethene
Hydrogen
Methane
Correct answer is B
No explanation has been provided for this answer.
The separation of petroleum fractions depends on the differences in their
boiling points
molar masses
melting point
solubilities
Correct answer is A
No explanation has been provided for this answer.
Which of the following oxides of nitrogen has oxidation number of + 1?
KNO3
N2O
N2O3
NO
Correct answer is B
No explanation has been provided for this answer.
a catalyst
an oxidizing agent
a reducing agent
a sulphonating agent
Correct answer is B
No explanation has been provided for this answer.