Assertion (A) : Silica is soluyble in ` HF`.
Reason (R) : `SiO_2 4HF rarr SiF_4 +2H_2 O`
` SiF_4 2HF rarr H_2 SiF_6` .

Assertion (A) : Silica is soluble in HF . Reason (R) : SiO_2 + 4HF rarr SiF_4 +2H_2 O SiF_4 + 2HF rarr H_2 SiF_6 .

Complete the following equation.: SiO_2+4HF rarr?+2H_2O

Write the balance chemical equations (xii) SiO_2 + HF rarr

Complete the following reaction. XeOF_(4)+SiO_(2)rarrA+SiF_(4) (ii) A+SiO_(2)rarrB+SiF_(4)

For the given reactions SiO_(2) +4HF rarr SiF_(4) +2H_(2)O, DeltaH =- 10.17 kcal SiO_(2) +4HCI rarr SiCI_(4) +2H_(2)O, DeltaH = 36.7 kcal It may be concluded that

For the given reactions SiO_(2) +4HF rarr SiF_(4) +2H_(2)O, DeltaH =- 10.17 kcal SiO_(2) +4HCI rarr SiCI_(4) +2H_(2)O, DeltaH = 36.7 kcal It may be concluded that

What happen when : SiO_2 is treated with HF.