In these conditions you have Claisen-Smidth's condensation between acetone and acetone, acetone and aldehyde, acetone and every kethone you form, and Cannizzaro's reaction between aldehydes. So you have a mixture, you can't be sure you got only that reaction. All conjugated systems are yellow.
In these conditions you have Claisen-Smidth's condensation between acetone and acetone, acetone and aldehyde, acetone and every kethone you form, and Cannizzaro's reaction between aldehydes. So you have a mixture, you can't be sure you got only that reaction. All conjugated systems are yellow.