K2Cr2O7/H2SO4 generate____________________?

Related Mcqs:

1. In K2Cr2O7 the oxidation number of chromium is____________________?

   A. 7 B. 6 C. -7 D. -6...

2. Which compound form benzoic acid on oxidation with acidified KMnO4 or K2Cr2O7 ?

   A. Toluene B. Ethyl benzene C. n-propyl benzene D. All...

3. Which of the following solutions of H2SO4 is more concentrated ?

   A. 1 Molar solution B. 1 molal solution C. 1 normal solution D. all have same concentration...

4. Density of H2SO4 in lead accumulator is__________________?

   A. 1.25g/cm3 B. 1.3g/cm3 C. 1.20g/cm3 D. 1.15g/cm3...

5. The reaction of carboxylic acids with alcohols in presence of cone. H2SO4 is called _________________?

   A. esterification B. neutralization C. hydrolysis D. saponification...

6. Formaldehyde condenses with phenol in the presence of dilute H2SO4 to yield________________?

   A. Nylon 66 B. urotropine C. Aniline formaldehyde plastic D. Bakelite...

7. During sulphonation of benzene H2SO4 generates the electrophile _________________?

   A. HSO4- B. SO2 C. SO3 D. H+...

8. The gas which cannot be dried by conc. H2SO4 ?

   A. SO2 B. H2S C. CO2 D. C2H4...

9. The PH of the 0.0032 M H2SO4 is__________?

   A. 3.2 B. 4.0 C. 2.198 D. 1.0 Submitted by: Muhammad Ali Kunbhar...

10. Which of the following gases when passed through warm dilute solution of H2SO4 in presence of HgSO4 gives acetaldehyde

    A. CH4 B. C2H6 C. C2H4 D. C2H2 Submitted by: Aamir khan Hullio...