Non-metals usually form _________________ oxides?

Related Mcqs:

1. Which of following metals can be displaced by all other metals from its solution ?

   A. Ag
   B. A
   C. Au
   D. Cu

2. 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

3. The oxides of beryllium BeO is_______________?

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

4. Arsenic oxides are removed by passing through_________________?

   A. Ferric hydroxide
   B. Sodium hydroxide
   C. Calcium hydroxide
   D. Aluminium hydroxide

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. Boron is non metal while other elements of IIIA group are metals. This is because______________?

   A. it has small size
   B. it has high nuclear charge
   C. it forms molecular addition compounds
   D. all of the above

7. Which one of the following sets consists of all coinage metals ?

   A. Cu Hg Au
   B. Cu Ag Au
   C. Ag Au Hg
   D. Cu Fe Au

8. When electrons collide with heavy metals than ___________ are produced?

   A. Beta-rays
   B. Alpha-rays
   C. X-rays
   D. Gamma-rays

9. Any process of chemical decay of metals due to the action of surrounding medium is called__________________?

   A. activation
   B. enameling
   C. corrosion
   D. coating

10. A elements are named as alkali metals because_______________?

    A. Their oxides are basic
    B. Their oxide and hydroxides are water soluble
    C. Both A & B
    D. They are found in earth