The empirical formula of a hydrocarbon containing 0.12 mole of carbon 0.3 mole of hydrogen is
CH2
CH3
C2H2
C2H4
C2H6
Correct answer is B
No explanation has been provided for this answer.
Which of the following statements is NOT correct of group VII elements? They
are diatomic
are good oxidizing agents
are highly electronegative
have high electron affinity
have relatively low ionization potentials
Correct answer is E
No explanation has been provided for this answer.
Which of the following is NOT a fraction of petroleum?
Bitumen
Coal
Diesel
Kerosene
Petrol
Correct answer is B
No explanation has been provided for this answer.
The scientist who discovered the zig-zag movement of gas molecules is
Brownian
Dalton
Gay Lussac
Graham
Newton
Correct answer is A
No explanation has been provided for this answer.
The following compounds decolorize acidified potassium tetraoxomanganate (VII) solution EXCEPT
HOCH2 – CH2OH
H2C –C =C– CH3
H3C – HC = CH2
H2C = CH2
H3C – C =CH
Correct answer is A
No explanation has been provided for this answer.