Phosphene gas will be produced if phosphorous acid is subjected to___________________?

Related Mcqs:

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

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

2. Carboxylic acid on reduction with HI / phosphorous yields_________________?

   A. alkane
   B. alcohols
   C. aldehydes
   D. ketones

3. Which allotropic form of phosphorous is the most stable ?

   A. White
   B. black
   C. red
   D. Violet

4. Phosphoric acid is a weak acid and its basicity is____________________?

   A. 1
   B. 3
   C. zero
   D. 2

5. 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

6. When alcohol reacts with phosphorous halides it geive____________________?

   A. alkyl halides
   B. alkyl amine
   C. alkanes
   D. alkynes

7. Oxidation state +1 for phosphorous is found in___________?

   A. H3PO3
   B. H3PO4
   C. H3PO2
   D. H2P2O7

   Submitted by: Muhammad Ali Kunbhar

8. Acid present in acid rain may be_________________?

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

9. Acid present in acid rain may be__________________?

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

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

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