The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is _________________?

Related Mcqs:

1. Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at _____________ °C ?

   A. 15-30 B. 90-100 C. 250-300 D. < 0...

2. Chloral is used in the manufacture of__________________?

   A. DDT B. BHC C. Parathion D. None of these...

3. DDT should not be allowed to come in contact with iron (during its manufacture) to _______________?

   A. Avoid its decomposition B. Prevent sulphonation of the monochlorobenzene by the acid catalyst C. Achieve non-hygroscopic property D. None of these...

4. Catalyst used during the manufacture of ‘Vanaspati Ghee’ is ___________________?

   A. Zinc B. Nickel C. Platinum D. Copper...

5. Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like_________________?

   A. High cost B. Fragile nature C. Easy poisoning tendency D. All A, B. and C....

6. Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene ?

   A. AgO B. Al2O3 C. ZnCl2 D. Fe2O3...

7. Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process ?

   A. NH3 B. NaCl C. CaO D. Coke...

8. In the manufacture of H2SO4, vanadium catalyst as compared to platinum catalyst___________________?

   A. Gives higher conversion efficiency B. Has a longer life and is not poisoned by arsenic C. Handles lower SO2 content gas (7 -10% SO2), thus increasing the capital cost of the plant D. All A , B. and C....

9. Manufacture of phthalic anhydride uses ______________ as a catalyst ?

   A. Ni B. Cr C. V2O5 D. Al2O3...

10. Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively ?

    A. V2O5 & Cr2O3. B. Oxides of nitrogen & Cr2O3 C. V2O5 on a porous carrier & oxides of nitrogen D. Oxides of nitrogen & V2O5 on a porous carrier...