Colemanite is

How would you prepare boric acid from borax and from colemanite? Discuss its structure.

Identify (X) and (Y) in the following reactions : Colemanite + (X) rarr Na_(2) B_(4) O_(7) Na_2B_(4) O_(7) + (Y) rarr H_(3) BO_(3) .

Identify (X) and (Y) in the following reactions : Colemanite + (X) rarr Na_(2) B_(4) O_(7) NaB_(4) O_(7) + (Y) rarr H_(3) BO_(3) .

Colemanite + G (compound) rarr A + B + C Coverset(Delta)rarrD+E("gas")overset("Baryta water")rarr "milky"overset(E+H_(2)O)rarr"milkyness disappears" B + E ("gas") rarr A + G , A overset(Delta)rarr F + B F + CuO rarr "Blue bead" Compound 'A' is :

Colemanite + Na_(2)CO_(3)overset(" Fused ")rarr (A)+(B)+CO_(2) underset("solution)((A))+CO_(2)rarr (B)+Na_(2)CO_(3) (B)+conc.HCl rarr NaCl+underset("Acid")((C )) underset("Acid")((C ))+H_(2)O rarr underset("Acid")((D)) (D)overset(" strong heating ")rarr (E ) (E )+CuSO_(4)overset(" Heated ")underset(" in flame ")rarr underset("Blue coloured compound")((F)) Compound (B) is

"Colemanite" + Na_(2)CO_(3) overset("Fused")rarr (A) + (B) + CO_(2) underset("Solution")((A)) + CO_(2) rarr(B) + Na_(2) CO_(3) (B) + conc HCl rarr NaCl + underset("Acid")((C)) underset("Acid")((C)) +H_(2)O rarr underset("Acid")((D)) (D) overset("Strong heating")rarr (E) (E) +CuSO_(4) overset("Heated") underset("inflame")rarr underset("Blue-coloured compound")((F)) . Compound (A) is.

"Colemanite" + Na_(2)CO_(3) overset("Fused")rarr (A) + (B) + CO_(2) underset("Solution")((A)) + CO_(2) rarr(B) + Na_(2) CO_(3) (B) + conc HCl rarr NaCl + underset("Acid")((C)) underset("Acid")((C)) +H_(2)O rarr underset("Acid")((D)) (D) overset("Strong heating")rarr (E) (E) +CuSO_(4) overset("Heated") underset("inflame")rarr underset("Blue-coloured compound")((F)) . Compound (E) is.

"Colemanite" + Na_(2)CO_(3) overset("Fused")rarr (A) + (B) + CO_(2) underset("Solution")((A)) + CO_(2) rarr(B) + Na_(2) CO_(3) (B) + conc HCl rarr NaCl + underset("Acid")((C)) underset("Acid")((C)) +H_(2)O rarr underset("Acid")((D)) (D) overset("Strong heating")rarr (E) (E) +CuSO_(4) overset("Heated") underset("inflame")rarr underset("Blue-coloured compound")((F)) . Compound (D) is.

"Colemanite" + Na_(2)CO_(3) overset("Fused")rarr (A) + (B) + CO_(2) underset("Solution")((A)) + CO_(2) rarr(B) + Na_(2) CO_(3) (B) + conc HCl rarr NaCl + underset("Acid")((C)) underset("Acid")((C)) +H_(2)O rarr underset("Acid")((D)) (D) overset("Strong heating")rarr (E) (E) +CuSO_(4) overset("Heated") underset("inflame")rarr underset("Blue-coloured compound")((F)) . Compound (F) is.

Colemanite + G (compound) rarr A + B + C Coverset(Delta)rarrD+E("gas")overset("Baryta water")rarr "milky"overset(E+H_(2)O)rarr"milkyness disappears" B + E ("gas") rarr A + G , A overset(Delta)rarr F + B F + CuO rarr "Blue bead" When 1 mole of 'C' and 2 moles of 'G' are heated the number of moles of 'E' formed is/are 'x' . The number of hybrid or orbitals in 'E' is/are 'y' . then x + y =