Phosphoric acid is a weak acid and its basicity is____________________?

Related Mcqs:

1. Phosphorous acid upon thermal decomposition yields phosphoric acid and____________________?

   A. Phosphine
   B. Phosphorus
   C. Water
   D. Phosphorus pentoxide

2. Basicity of orthophosphoric acid is________?

   A. 2
   B. 3
   C. 4
   D. 5

   Submitted by: Muhammad Ali Kunbhar

3. Which of the following will give phosphoric acid one reaction with water_________________?

   A. PCI5
   B. P2O3
   C. P2O5
   D. All of the above

4. When 0.5 mole of phosphoric acid is dissolved in aqueous solution how many moles of -ve and +ve ions are collected altogether ?

   A. 0.5
   B. 1
   C. 1.5
   D. 2

5. Conjugated base of a weak acid is_________________?

   A. weak
   B. strong
   C. moderately weak
   D. unstable

6. When sulphuric acid is treated with ethanol sulphuric acid behaves like________________?

   A. an acid
   B. a dehydrating agent
   C. an oxidizing agent
   D. as sulphonating agent

7. Acid present in acid rain may be_________________?

   A. H2SO4
   B. HNO3
   C. both A and B
   D. none of the above

8. Acid present in acid rain may be__________________?

   A. H2SO4
   B. HNO3
   C. both A and B
   D. none

9. The common thing in phthalic acid and oxalic acid is that both are_________________?

   A. Aromatic
   B. Dicarboxylic
   C. Hydrocarbons
   D. Strong acids

10. The metal which is used in thermite process because of its activity is____________________?

    A. iron
    B. copper
    C. aluminium
    D. zinc