Phenanthrene is a fused polycyclic compound contains __________ benzene rings ?

A. Two
B. Three
C. Four
D. Five

Related Mcqs:

Which is fused cyclic aromatic compound _____________________?
A. diphenyl amine
B. diphenyl methane
C. naphthalene
D. biphenyl
Ammonium cynanate was 1st Inorganic compound that was converted into an Organic compound (in Lab) through boiling water. The organic compound was____.
A. Methane
B. Ethanol
C. Acetic acid
D. Urea

Submitted by: Aamir khan Hullio
In benzene sulphonic acid the sulphonic group is attached with benzene ring through ___________________?
A. Hydrogen
B. Oxygen
C. Sulphur
D. OH
When benzene is substituted by halogens only which one of the following halogens only which one of the following halogens is given the number one position in the ring while writing the name of compound ?
A. Bromine
B. Chlorine
C. Fluorine
D. Iodine
The metallurgical process in which a metal is obtained in a fused state is called__________?
A. smelting
B. roasting
C. calcinations
D. froth floatation

Submitted by: Muhammad Ali Kunbhar
If a compound contains 24 gram of carbon 2 gram of hydrogen and 64 gram of oxygen then its empirical formula will be________?
A. C2H2O4
B. CH2
C. CH2O
D. CHO2

Submitted by: Raza Samejo
Michael Faraday discovered benzene in the gas which was produced by destructive distillation of vegetable oil that is done in________________?
A. The presence of Oxygen
B. The presence of Hydrogen
C. The absence of Oxygen
D. The presence of excessive Oxygen
During sulphonation of benzene H2SO4 generates the electrophile _________________?
A. HSO4-
B. SO2
C. SO3
D. H+
Mixture of catalysts Cr2O3 + A?2O3 + SiO2 at 500?C are used when benzene is prepared from_______________?
A. acetylene
B. N-hexane
C. Benzene sulphonic acid
D. Sodium benzoate
Ozonolysis of benzene produces___________________?
A. Glycol
B. Glyoxal
C. Vicinal diol
D. Both B & C