Organic Chemistry Flashcards
1
Q
Estimation of C
A
12/44 ×a/W ×100
2
Q
Estimation of H
A
2/18 × b/W ×100
3
Q
Estimation of Cl
A
35.5/143.5 × x/W ×100
4
Q
Estimation of Br
A
80/188× x/W ×100
5
Q
Estimation of I
A
127/235 × x/W × 100
6
Q
Estimation of S
A
32/233 × x/W × 100
7
Q
Estimation of P
A
62/222 × x/W × 100
8
Q
Duma’s method of estimation of N
A
9
Q
Kjeldah’s method can’t be used for
A
1.N in ring
2.Nitro compounds
3.Azo compounds
10
Q
Kjeldah’s method
A
nNH3= 2(MaVa-MbVb/2)
% of NH3 =nNH3×14×100/x
where x is the mass of the organic compound
11
Q
Duma’s method
A
P=Pgiven-aqueous Tension
n=PV/RT
%N=n×28×100/x
12
Q
Aromatic compounds huckle’s rule
A
4n+2=π electron
13
Q
Anti aromatic
A
4n=π electron
14
Q
What is cis?
A
when two same atoms or group are in same plane
15
Q
What is trans?
A
2 same atoms or groups are in different planes
