Which of the following compounds would be the main product of an aldol condensation of acetaldehyde and acetone ?

• CH₃CH=CHCHO

• CH₃CH=CHCOCH₃

• (CH₃)₂C= CHCHO

• (CH₃)₂C= CHCOCH₃

Which one of the following compounds will not react with CH₃MgBr ?

• Ethyl acetate

• Acetone

• Dimethyl ether 

• Ethanol

73.

Dehydration of alcohol usually goes by

• E1 mechanism

• E2 mechanism

• E1 cb mechanism

• S_N2 mechanism

Which one of the following is a copolymer?

• Saran

• Orlon

• PVC

• Teflon

Which one of the following compounds will not undergo aldol condensation ?

• Acetaldehyde

• Formaldehyde

• Propionaldehyde

• Acetone