What happens when (i) Concentrated `H_2 SO_4` is added to calcium fluo – InterviewSolution

InterviewSolution

1.	What happens when (i) Concentrated `H_2 SO_4` is added to calcium fluoride. (ii) `SO_3` is passed through water ?
Answer» (i) `underset ("Calcium fluoride") (CaF_2) + underset ("Sulphuric acid") (H_2 SO_4) rarr underset ("Calcium sulphate") (CaSO_4) + underset ("Hydorgen fluoride")(2HF)` (ii) `underset ("Sulphur trioxide")(SO_3) + underset ("Water") (H_2O) rarr underset ("Sulphuric acid")(H_2 SO_4)` `SO_3` dissolves on water to form `H_2SO_4`.

Discussion

No Comment Found

Related InterviewSolutions

Nitric oxide, though an odd electron molecule, is diamagenetic in liquid state.
In the reaction: `3Br_(2)+6OH^(Theta)rarr 5Br^(Theta)+BrO_(3)^(Theta)+3H_(2)O,Br_(2)` isA. OxidisedB. ReducedC. DisintegratedD. Disproportionted
Give balanced equations for the following : Phosphorous reacts with nitric acid to give equimolar ratio of nitric oxide and nitrogen dioxide.
(a) Though nitrogen exhibits `+5` oxidation state, it does not form pentahalide. Give reason. (b) `PH_3` has lower boiling point than `NH_3`. Why ?
In white phosphorous `/_ PPP = 90^@`.
Which ordering of compounds is according to the decreasing order of the oxidation state of nitrogen ?A. `HNO_3, NO, NH_4 Cl, N_2`B. `HNO_3, NO, N_2, NH_4 Cl`C. `HNO_3, NH_4 Cl, NO,N_2`D. `NO,HNO_3, NH_4 Cl, N_2`
Why commercial `HNO_3` is generally yellow in colour ?
The product formed in the reaction of `SOCl_2` (thionyl chloride) with white phosphorous is.A. `PCl_3`B. `SO_2 Cl_2`C. `SCl_2`D. `POCl_3`
Concentrated `HNO_3`, upon long standing, turns yellow-brown due to the formation ofA. `NO`B. `NO_2`C. `N_2 O`D. `N_2 O_4`
When sulphur is boiled is boiled with `Na_2 SO_3`, a compound `(X)` is produced, `(X)` with excess of `AgNO_3` solution gives a compound `(Y)` which is soluble in water and produces a black coloured sulphide `(Z)`. Identify compounds `(X),(Y)` and `(Z)`.