Predict the product of following aldol condensation reaction:

Predict the product of following aldol condensation reaction:

Indicate the starting aldehyde or ketone from which, the following compound is formed by an aldol condensation reaction:

$2-$Ethyl$-3-$hydroxy hexanal

Indicate the starting aldehyde or ketone from which, the following compound is formed by an aldol condensation reaction:

$4-$Hydroxy$-4-$methyl$-2-$pentanone

Predict the products of the following cross condensation reaction:

Predict the products of the following cross condensation reaction:

Predict the product from claisen condensation of the following pair of esters.

Predict the product for each of the following reaction-

.

Predict the product for each of the following reaction-

.