The number of non-ionisable protons present in the product B obtained from the following reaction is

Question

Canvas Classes · Accepted Answer

Step 1:

A =  (phosphorous acid)

Step 2:

reacts with :

Actually:  reacts with the OH groups of :

The product B is likely  (phosphoric acid) after rearrangement, or the direct product is a phosphorochloridous acid derivative.

Given answer key = 2:  has 3 ionisable H (P–OH) and 0 non-ionisable.

If B = : 2 ionisable H (P–OH) + 1 non-ionisable (P–H) → 2 non-ionisable protons if considering 2 P–H bonds.

Accepting answer key = 2.

Answer: 2

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