The reaction of chloroform with acetone gives ...................

Aldehydes and ketones give pure addition reaction with:

Which of the following compounds has the highest boiling point?

Find the major product of the following reaction:
$Ph-CHO + CH_3-CHO \xrightarrow[\Delta]{Ca(OH)_2}$ Major product

Which among the following is a possible product during cross aldol condensation between propanal (as electrophile) and butanal (as nucleophile)?

What is the final product of this reaction?