Arsenic oxides are removed by passing through_________________?

Related Mcqs:

1. Safe and the most reliable method of drying crystals is through_________________?

   A. Filter paper
   B. Vacuum desiccators
   C. Oven
   D. None of these

2. Non-metals usually form _________________ oxides?

   A. Acidic
   B. Amphoteric
   C. Neutral
   D. All of the above

3. True increasing order of acidity of the oxides of Mn is_________________?

   A. MnO < MnO2 < Mn2O7
   B. Mn2O7 > MnO2 > MnO
   C. MnO2 > MnO > Mn2O7
   D. MnO2 > Mn2O7 > MnO

4. The oxides of beryllium BeO is_______________?

   A. Acidic
   B. Basic
   C. Amphoteric
   D. Neutral

5. Which of the following oxides of iodine is used for quantitative analysis of CO ?

   A. I2O4
   B. I4O2
   C. I2O5
   D. All are equally useful

6. The process in which solid changes directly into vapours without passing through liquid state?

   A. Decantation
   B. Sublimation
   C. Evaporation
   D. None

   Submitted by: Naintara Mustafa

7. which of the following pair is not distinguished by passing H2S?

   A. Hg, Pb
   B. Zn, Mn
   C. As, CD
   D. Cd , Pb

   Submitted by: Said wali shah

8. Water of crystallization can be removed by________________?

   A. drying
   B. heating
   C. evaporation
   D. All of the above

9. In the production of wrought iron Mg Si and P are removed in the form of___________________?

   A. oxides
   B. silicates
   C. slag
   D. carbonates

10. When one hydrogen atom of alkane is removed then it is called________________?

    A. alkene
    B. alkyl
    C. aldehyde
    D. saturated hydrocarbon