1. For the cell ( at 298 K )
Ag(s)| AgCl(s) | Cl- (aq)||AgNo3(aq)|Ag(s)
Which of the following is/are correct-
(A) The cell emf will be zero when [Ag+] in anodic compartment = [Ag+] in cathodic compartment .
(B) The amount of AgCl(s) precipitate in anodic compartment will increase with the working of the cell.
(C) The concentration of [Ag+] remain constant, in anodic compartment during working of cell.
(D) o= E°Ag+|Ag -E° cl- |Agcl| Ag - 0.059/1 log 1/Ksp(Ag c l )
42) Which of the following carbocations are formed during the formation of given products.
CH3----CH
CH----CHCH2 --HCL---->
CH3--CH2---CHCH--CH2---cL + CH3---CH(cL)----CHCH----CH3
(A) CH3---CH2----CH+---CHCH2
(B) CH3 --- CH2--CHCH---CH2+
(C) CH3---CHCH---CH+---CH3
(D) CH3----CHCH---CH2---CH3+
4Compound (x) C3H6O decolourises Br water , with dil H2So4it undergoes hydrolysis to give (y) and (z). The correct statements are :
(A) (x) is an ether (b) (X) is an alkene
(C) (X) is cyclic compound (d) Both y and z are carbonyl compounds
4ANS GIVEN
1) A B D
( But I got B D)
2) A B C
( I want the mechanism)
3) a b
(But how??? I want explanation)
133) Hydrolysis gives 2 products, matlab it is an ether, tht too non-cyclic.
As, there is 1 degree unsturation, & it is declourising Br2 water, a double bond is present.
So, X will be.... CH2=CH-O-CH3.
Y & Z are- CH3-CHO & CH3-OH.
Hence, only A & B are rite.....
