MCQ
Correct order of basicity is


- A$3 > 1 > 2 > 4$
- B$3 < 1 < 2 < 4$
- C$3 < 4 < 1 < 2$
- ✓$3 > 4 > 1 > 2$

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$A + H_2O + CO_2 \to B$
$B + NaCl \to C + NH_4Cl$
$C\xrightarrow{\Delta }D + {H_2}O + C{O_2}$
Incorrect statement is
$(I)$ $TeF_6$ $(II)$ $SF_6$ $(III)$ $NCl_3$ $(IV)$ $NF_3$
Choose the correct code
[Atomic Masses - $\mathrm{Na}: 23.0\, \mathrm{u}, \mathrm{O}: 16.0\, \mathrm{u}, \mathrm{P}: 31.0 \,\mathrm{u}]$


