Boron is non-netal whereas A1 is metal. It is due to_______________________?

Related Mcqs:

Substance which is found in dried up lakes of Tibet and California is_______________?

A. Tincal B. Boric acid C. Calcium carbonate D. Colemanite...

Which of the following does not give Borax bead test ?

A. Cu B. Cr C. Ni D. A1...

The coloured glassy mass in borax bead test is due to the formation of___________________?

A. metal borate B. metal meta borate C. metal boride D. metal silicate...

Aqueous solution of borax above 62°C gives crystals of________________?

A. Na2B4O7.4H2O B. Na2B4O7.5H2O C. Na2B4O7.2H2O D. Na2B4O7.10H2O...

Which of the following is not a use of silicon ?

A. Lubricants B. Hydraulic brakes C. Antifreeze D. Water repellent...