Which of the following solutions of H2SO4 is more concentrated ?

Related Mcqs:

1. Consider the following reaction- 2KCIO3 + H2C2O4 + H2SO4 ? K2SO4 + 2H2O + 2CO2 + Oxide Which oxide of chlorine is produced in the above reaction ?

   A. Cl2O
   B. ClO2
   C. Cl2O6
   D. Cl2O7

2. 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

3. The pH of 10-3 mol dm-3 of an aqueous solution of H2SO4 is_________________?

   A. 3
   B. 2.7
   C. 2
   D. 1.5

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. K2Cr2O7/H2SO4 generate____________________?

   A. Oxygen
   B. Hydrogen
   C. Nascent oxygen[O]
   D. Nascent hydrogen[H]

10. 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