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QAIPM-2011-Ch-1845: NEET 2011 Chemistry - Class 11 AIPM-2011-Ch-1845 Solution: The Lassaigne's extract is boiled with conc. \(HNO_3\) while…
The Lassaigne's extract is boiled with conc. while testing for halogens. By doing so it decomposes and NaCN formed helps in the precipitation of AgCl increases the solubility product of AgCl increases the concentration of ions
Multiple Choice Options
- A H 2 O
- B NH 3
- C BF 3
- D OH _
Step-by-Step Verified Solution
The species which have a lone pair of electrons
to donate or a negative charge on it can act as a
Lewis base. Here, N atom in NH 3 and O atom
in H2O have lone pair of electrons available for
donation. In OH �
the negative charge on it results
in to behave it as a Lewis base. But BF 3 is an electron
deficient species thus, it is least likely to behave as
Lewis base.