`Na_(2)B_(4)O_(7)+` concentrated `H_(2)SO_(4)+H_(2)O to (A) underset((ii)"ignite")overset((i)C_(2)H_(5)OH)to (B)`
Identify A and B

SiF_(4) + H_(2)O to Aoverset(1000^(0)C)to B overset(Na_(2)CO_(3))to C Identify B & C ?

Identify A,B,C, ….. C_(6)H_(5)NH_(2)underset(2.B)overset(1.A)toC_(6)H_(5)I

Na_(2)C_(2)O_(4)+H_(2)SO_(4)(Conc.) to Na_(2)SO_(4)+CO+CO_(2)

Na_(2)C_(2)O_(4)+H_(2)SO_(4)(Conc.) to Na_(2)SO_(4)+CO+CO_(2)

CH_(2) = CH_(2) + B_(2) H_(6) underset(H_(2)O_(2))overset(NaOH) to Product is :

Identify the compounds A, B and C : (i) C_(6)H_(5)COOH overset(PCl_(5)) to A overset(H_(2)-Pd//BaSO_(4)) to B overset("KCN alc")underset("distil") to C (ii) H-C -= C - H overset(H_(2)O)underset(" dil "H_(2)SO_(4) + HgSO_(4)) to A underset("Ni")overset(H_(2)) to B overset(140^(@) C)underset("conc" H_(2)SO_(4)) to C

Na_(2)CrO_(4)+HCl to H_(2)Cr_(2)O_(7)+Na_(2)SO_(4)

Na_(2)CrO_(4)+HCl to H_(2)Cr_(2)O_(7)+Na_(2)SO_(4)

A underset((II) H_2 O_2, OH^(-))overset((I) BH_3 (TH F))larr CH_3 C -= CH underset(H_2 SO_4)overset(HgSO_4)to B Identify A and B.