MCQ
Correct order of acidic strength is
- ✓$Cl_2O_7 > SO_3 > P_4O_{10}$
- B$CO_2 > N_2O_5 > SO_3$
- C$Na_2O > MgO > Al_2O_3$
- D$K_2O > CaO > MgO$
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| List $I$ Element detected | List $II$ Reagent used/Product formed |
| $A$ Nitrogen | $I.$ $Na _2\left[ Fe ( CN )_5 NO \right]$ |
| $B$ Sulphur | $II.$ $AgNO _3$ |
| $C$ Phosphorous | $III.$ $Fe _4\left[ Fe ( CN )_6\right]_3$ |
| $D$ Halogen | $IV.$ $\left( NH _4\right)_2 MoO _4$ |
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