will u plz sent ans for these qns...
10. How do you account for molar conductivity of
strong and weak electrolyte with concentration? Plot
the graphs also.
11. Explain the Electrophoresis with diagrams.
13.(a) How is nitric acid obtained on large scale by
(b) All the bonds in the molecules of PCl5 are not
(a) H2S is less acidic than H2O.
(b) H2O is a liquid and H2S is a gas.
15. (a) Fluorine exhibit oxidation state of –1 only
whereas other halogens exhibit +1, +3, +5, +7 oxidation
states also. .why
(b) Fluorine forms only one oxoacid, HOF
(b) There are two – NH2 group in semi carbazide
however only one is involved in the formation of semi
1. Zn, Cd and Hg are not considered as transition
2. Scandium is a transition element but Zinc is
3. Silver atom has completely filled d orbital
(4d10) in its ground state, yet it is transition
(b) Write balanced ionic equations for reacting ions to
represent the action of acidified Potassium dichromate
(i) Potassium iodide solution [ii] iron (II) solution
(c) The chromates and dichromates are interconvertible
in aqueous solution depending upon pH of the solution.
30. (a) Primary alkyl halide C4H9Br (a) reacted with
alcoholic KOH to give compound (b).Compound (b) is
reacted with HBr to give (c) which is an isomer of
(a).When (a) is reacted with sodium metal it gives
Compound (d),C8H18 which is different from the compound
formed when n-butyl bromide is reacted with sodium
.Give the structural formula of (a) and write the
equations for all the reactions.
2. (b) An organic compound ‘A’ with molecular
formula C5H5O . It does not reduce Tollen’s or
Fehling’s reagent but forms a bisulphite compound. It
also gives iodoform tests. Identify A
(a)An organic compound ‘A’ with molecular formula
C5H8O2 is reduced to n-pentane on treatment with
Zn-Hg/HCI. ‘A’ forms a dioxime with hydroxylamine
and gives a positive iodoform test and Tollen’s test.
Identify the compound A and deduce its structure.
(b) An aromatic compound A on treatment with aqueous
ammonia and heating forms compound B which on heating
with Br2 and KOH forms a compound C of molecular
formula C6H7N .Write the structures and IUPAC names of
WELL CAN U TEMME HOW SHUD I PREPARE ORGANIC 4 XI EXMZ
I THINK ITZ TOO VAST HOW SHUD I PREPARE SO DAT NTHING
i am from 12th cbse chennai
Will the abcd questions of Organic be only from the
text ?Back questions ?
There are Important equations given behnd the Exams
idea guide and together with chemistry.
There are equations which are not to be found in the
text but tested , What to do sir ?