Application OF hyperconjugation || B.E || B.L || R.E || H.O.C || H.O.H

Complete the following reaction : (a) (b) ( c) (d) ( e) (f) PhCHO overset(N_(3)H//H^(o+))underset(Delta)rarr (B) overset(H_(3)O^(o+))rarr (C) +(D) (g)

Each question is based on the following alphabet-series : A B C D E F G H I J K L M N O P Q R S T U V W X Y Z In the following letter sequence, how many n's are followed by m but not preceded by h ? a g r h t n m b e n m l b u v n m h er h n m g f e h n m e c n m w q a n m h l b

Complete the following reactions : (a) H_2 S+ H_2 O_2 to (b) H_2 O_2 + 2OH^(-) to (c) CaOCl_2 + H_2 O_2 to (d) C_2 H_4 + H_2 O_2 to (e) K_2 Cr_2 O_7 + H_2 SO_4 + H_2 O_2 to

A hydrogen atom and a Li^(2+) ion are both in the second excited state. If l_H and l_(Li) are their respective electronic angular momenta, and E_H and E_(Li) their respective energies, then (a) l_H gt l_(Li) and |E_H| gt |E_(Li)| (b) l_H = l_(Li) and |E_H| lt |E_(Li)| (C ) l_H = l_(Li) and |E_H| gt |E_(Li)| (d) l_H lt l_(Li) and |E_H| lt|E_(Li)|

In which of the following reactions H_2 O_2 acts as a reducing agent ? I. H_2 O_2 + 2H^+ + 2e^- to 2H_2 O II. H_2 O_2 - 2re^- to 2H^+ III. H_2 O_2 + 2e^- to 2OH^- IV. H_2 O_2 + 2OH^(-) - 2e^(-) to O_2 + 2H_2 O

A B C D is a trapezium in which A B C D . The diagonals A C and B D intersect at O . Prove that (i) A O B C O D (ii) If O A=6c m , O C=8c m , Find: (A r e a ( A O B))/(A r e a ( C O D)) (b) (A r e a ( A O D))/(A r e a ( C O D))

The dissolution of 1 mol e of NaOH_((s)) in 100 mol e of H_(2)O_((l)) give rise to evolution of heat equal to -42.34kJ . However if 1 mol e of NaOH_((s)) is dissolved in 1000 mol e of H_(2)O_((l)) , the heat given out is 42.76kJ . What would be enthalpy change when 900 mole of H_(2)O_((l)) are added to a solution containing 1 mole of NaOH_((s)) in 100 mole of H_(2)O ?

What should come next in the following letter series ? H G F E D C B A H G F E D C B A H G F E D C B A H ? 1) G 2) E 3) A 4) I 5) None of these