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Biology

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This document consists of biology notes of class 11th and 12th, including topics such as human physiology, anatomy, about plants and animals

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R L MII C Y I F Y
.
.
.
. .
.

.
. .



.
- Z M

,‘‘Bring me the two most precious things in
the city,’’said the god to one of his Angles;
and the Angle brought him the leaden heart
and the dead bird.




keep your eyes on mine,
I if you want

I'll tell lis Tell I'm
you ,
me
yours for
she's next in
life
, and tell
your friend
..... Ohhh
line should've listened to them ,
,



Ohhh
, don't know what I .3
you
am




D

, Chemistry (+practice (
Barium -
> Ba ·
Molecule of some
comf

Boron- > B ·
m




compoundRatio
-




> Br
Bromine
as


FSilver-Ag (Water)2 %6 i
1 :8
H20
/Gold >
- An
Ammonia N ,
H 14 . ..
ele
Atomic Mass
of few (NHg) # T 14 3
:


carbon dioxide & :8
3

a = i
C2
N
N -



14 Y
Nat Ri

=
-

16
,




+
1) 3 + num
.



32 Nitrade
a
-




-

35 5 .



-

#
ca -


48


Atomicity ofSome els
O He-O
?
Monoatomic
Ar
-




-


Monoatomic
002 -



Diatomic &
·
(Double
Diatomic
-
-




-

Diatomic Phosphorus-3
Diatomia
Sulphur-4
-A
-


1-1 Ist

-


Jetratomic Hydrogen, Hydride Chloride
,




Poly-atomic more than 4 Bromide Iodide (-
- -


,




(H) & Hydrogen
NC
&single) , -
n-7 ,
Br i

, atomic ions
-




-
() Ammonium NHy
·




Hydroxide OH
-




-




Nitrate NO3
-




J
[Hydrogena -




HCOz-

(I)Carbonate-Ch -
·




SOz
23

Sulphate -




Soy2-

III) Phosphate-PO

Practice


Valency Age (age
Silver , Potassium,
copper
O
From ,


2) MgCan FeCu(mchalAs y




Magnesium
Iron
Calcium ,


Zinc, , copper .




3) AlFe (Alphal-




Aluminium ,
Iron

Written for

Institution
Secondary school
Course
School year
1

Document information

Uploaded on
March 1, 2026
Number of pages
63
Written in
2025/2026
Type
Class notes
Professor(s)
Ms. meena
Contains
Class 12th

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