C_(2)H_(2)" Red hot tube "longrightarrow A longrightarrow B" then "'B'" is "

C_(2)H_(2)overset("Red hot tube")toAoverset("fuming "H_(2)SO_(4))toB then 'B' is

In a radioactive decay sequence A (lambda_(1))/(longrightarrow) B (lambda_(2))/(longrightarrow) C (lambda_(3))/ (longrightarrow) D What is the ratio of numbers of atoms of A to the number of atoms of B after long time interval starting with pure A .The mean lives of A and B are 20 hours and "30" minutes respectively

Cl_(2)+NaOH cold / dil longrightarrow A+ Nacl +H_(2) Cl_(2)+NaoH hot / conc longrightarrow B+Nacl+H_(2) of oxidation numbers of chlorine in A and B is

underset("(Calcium carbide)")(CaC_(2)) overset(H_(2)O)rarr (A) overset("Red hot Cu tube")rarr (B) , product (B) of the reaction is :

Ia A nn B sube C and A nn B longrightarrow phi. Then which of the following is incorrect

H_(2)B_(4)O_(7) overset("Red hot")rarrA. Identify A?

Consider the following reactions C_(2)H_(2)overset("Redhot iron tube")underset(500^(@))to A A overset(ConcHNO_(3),H_(2)SO_(4))underset(70^(@)C)to B Boverset(LiAIH_(4))toC_(6)H_(5)-N-C_(6)H_(5) A and B are

C_(2)H_(2) underset("metal tube")overset("Red hot")to A overset("Fuming "H_(2)SO_(4))to B. B is