Q6. Why is aluminium not found as a free element? Explain the chemistry of the borax bead test. Q7. How does orthoboric acid react with: (a) Sodium hydroxide(b) Ethyl alcohol Q8. How will you convert boric acid into borax and vice versa? Q9. Why are liquid silicones preferred over ordinary organic lubricants? Q10. Explain: (a) … Continue reading Group IIIA and IVA elements Complete Exercise Solved