The resonance energy of benzene is__________________?

Related Mcqs:

1. In benzene sulphonic acid the sulphonic group is attached with benzene ring through ___________________?

   A. Hydrogen B. Oxygen C. Sulphur D. OH...

2. 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...

3. 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...

4. How many moles of H2 are added up when benzene is heated with hydrogen in the presence of platinum ?

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

5. What catalyst is employed when benzene is prepared from acetylene at 70°C?

   A. Cr2O3 + A2O3 + SiO2 B. Raney nickel C. Organo-nickel D. Ni 250 – 300°C...

6. Which one of the following statement is not correct about benzene ?

   A. On hydrogenation 208 KJ/mole is liberated B. C-H bond length in benzene is 1.09 A? C. Molecular mass of benzene is 78.108 D. Resonance energy of benzene is 150.5 K Cal/mole...

7. Replacement of hydrogen of benzene by alkyl group in the presence of alkyl halide & aluminum chloride is known as__________________?

   A. Dows process B. Friedel & Craft acylation C. Friedel & Craft alkylation D. Clemmenson reduction...

8. Aniline is a derivative of benzene which contains__________________?

   A. Imino group B. Amino group C. Amide group D. Nitro group...

9. By which method the molecular mass of benzene was determined as 78.108 ?

   A. Specific gravity method B. Vapour density method C. X-ray diffraction method D. Distillation methos...

10. Benzene does not undergo___________________?

    A. Substitution reaction B. Addition reaction C. Polymerization reactions D. Oxidation reactions...