Home
Class 11
CHEMISTRY
Boric acid on heating at 100^@ C, gives ...

Boric acid on heating at `100^@ C`, gives `(X)`. `(X)` on heating at `160^@ C` gives `(Y)` and `(Y)` on heating at red hot gives `(Z)`. Identify `(X),(Y)` and `(Z)`.

Text Solution

Verified by Experts

`H_(3) BO_(3) overset(100^@C)rarr underset("Metaboric acid (X)") (HBO_(2)) + H_(2) O`
`4HBO_(2) overset(160^@C)rarr underset("Tetraboric acid(Y)")(H_(2) B_(4) O_(7)) + H_(2) O`
`H_(2)B_(4) O_(7) overset("Red hot")rarr underset((Z)) (B_(2) O_(3)) + H_(2) O`
Hence, `(X)` is metaboric acid, `HBO_(2)` , `(Y)` is tetraboric acid, `H_(2) B_(4) O_(7)` and `(Z)` is boric oxide, `B_(2) O_(3)`.
Promotional Banner

Topper's Solved these Questions

  • P-BLOCK GROUP 13 - BORON FAMILY

    CENGAGE CHEMISTRY|Exercise Ex 6.1 (Subjective)|17 Videos

  • P-BLOCK GROUP 13 - BORON FAMILY

    CENGAGE CHEMISTRY|Exercise Ex 6.1 (Objective)|14 Videos

  • P-BLOCK GROUP 13 - BORON FAMILY

    CENGAGE CHEMISTRY|Exercise Exercise Archives (Subjecive)|9 Videos

  • ORGANIC REACTION MECHANISM

    CENGAGE CHEMISTRY|Exercise Analytical and Descriptive|6 Videos

  • P-BLOCK GROUP 14 - CARBON FAMILY

    CENGAGE CHEMISTRY|Exercise Exercises Archives (Subjective)|9 Videos

Similar Questions

Explore conceptually related problems

Boric acid on heating at 150^(@)C gives

Boric acid heated to red hot gives

Orthoboric acid when heated to red hot gives :

Acetylene on heating in the presence of red hot Fe tube gives :

A compound (X) on heating with an excess of NaOH solution gives a gas (Y) which gives white fumes on exposure to HCl. Heating is continued to expel the gas completely. The resultant alkaline solution again liberates the same gas (Y) when heated with Zn powder. However, when the compound (X) is heated alone does not give nitrogen. Identify (X) and (Y).