The unsaturated ether on acidic hydrolysis produces carbonyl compounds as shown below :-
Based on this, predict the solution/reagent that will help to distinguish "P" and "Q" obtained in the following reaction :-

Given below are two statements :
Statement I : Cross aldol condensation between two different aldehydes will always produce four different products.
Statement II : When semicarbazide reacts with a mixture of benzaldehyde and acetophenone under optimum pH , it forms a condensation product with acetophenone only.
In the light of the above statements, choose the correct answer from the options given below
$$ \text { Consider the following two reactions } \mathrm{A} \text { and } \mathrm{B} \text {. } $$

Numerical value of [molar mass of $x+$ molar mass of $y$ ] is $\_\_\_\_$
A student is given one compound among the following compounds that gives positive test with Tollen's reagent.
The compound is :
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