Aluminium oxide is_________________?

Related Mcqs:

1. moles of each aluminium and oxygen react with each other to produce aluminium oxide. The amount of product formed is______________________?

   A. 0.18 mole
   B. 0.27 mole
   C. 0.24 mole
   D. 0.09 mole

2. Fruit juices and fizzy drinks such as lemonade are often sold in aluminium cans. What is the most important reason aluminium is a suitable metal ?

   A. aluminium can be recycled
   B. aluminium has very low density
   C. aluminium is the most abundant metal in the earth crust
   D. aluminium is resistant to corrosion by organic acids.

3. 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

4. Because of its ability to combine with both oxygen and nitrogen aluminium metal is used_____________?

   A. As nitrometer
   B. To remove air bubbles from molten metal
   C. To produce alloy
   D. As insulator

5. The process of aluminium extraction is called__________________?

   A. Hall process
   B. Thermite process
   C. Haber process
   D. Contact process

6. Which one of the following alkali metals forms only normal oxide when it reacts with O2 ?

   A. Lithium
   B. Sodium
   C. Potassium
   D. Rubidium

7. Which is the paramagnetic oxide of chlorine ?

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

8. The IUPAC name of ethylene oxide is__________?

   A. Epoxy methane
   B. Oxoethene
   C. Methoxymethane
   D. Oxirane

   Submitted by: Muhammad Ali Kunbhar

9. Which Oxide of Manganese is amphoteric?

   A. MnO2
   B. Mn2O3
   C. Mn2O7
   D. MnO

   Submitted by: Muhammad Ali Kunbhar

10. A brivalent metal has the equivalent weighr of 12. The molecular weight to its oxide will be_______?

    A. 24
    B. 32
    C. 36
    D. 40

    Submitted by: Muhammad Ali Kunbhar