`R-overset(O)overset(||)(C)-R underset(("catalyst"))overset(HCN)(hArr) R-overset(OH)overset(|)underset(CN)underset(|)(C)-R`
Which of the following can be used as a catalyst in the above reaction ?

R-overset(O)overset(||)(C)-Runderset(("catalyst"))overset(HCN)hArrR-underset(CN)underset(|)overset(OH)overset(|)(C)-R Which of following can be used as a catalyst in the above reaction?

R-overset(O)overset(||)C-NH_(2)underset(HCl)overset(NaNO_(2))rarr A A is :

A overset(HCN)(rarr)B underset(H_(2)O)overset(HCl)(rarr)CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-underset(COOH)underset(|)overset(H)overset(|)(C)OH Which of the following is 'A' in the above series of reactions ?

CH_(3) - underset(H) underset(|)overset(OH)overset(|)(C ) - CN is

Cl-underset(Cl)underset(|)overset(Cl)overset(|)(C)-underset(H)underset(|)overset(OH)overset(|)(C)-OH