In the reaction
`CF_(3)-CHCl_(2) underset(Delta)overset(LDA)rarr CF_(2) = CCl_(2)`
Intermediate formed is :

CF_(2) = CF_(2) is a monomer of

CF_(2) = CF_(2) is a monomer of

CF_(2) = CF_(2) is a monomer of

What are A,B,C in the following series of reaction ? CH_(3)-CHCl_(2) underset(KOH)overset(aq.)(rarr)A overset(dil. Na_(2)CO_(3))(rarr)B overset(Delta)(rarr)C

CH_(3)CH_(3)+CH_(2)N_(2)underset(or Delta)overset(hv)rarr The product of the reaction is

In the reaction : CH_3 CHCl_2 overset (aq. KOH) rarr Intermediate rarr X, X is:

In the following reaction sequence Y is, PhOCOCH_(3) underset(Delta)overset(AlCl_(3))rarr (X) underset(NaOH)overset(I_(2))rarr (Y)

In the following reaction sequence Y is, PhOCOCH_(3) underset(Delta)overset(AlCl_(3))rarr (X) underset(NaOH)overset(I_(2))rarr (Y)

In the reaction, CH_(3)C-=overset(-)(C )overset(+)(N)a+(CH_(3))_(2)CHCl rarr the product formed is