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সকল বিষয়

3.5 A
     0.3 × 10-3A
   0.3 ×103A
 3.3 ×103mA 
109 m   
  10-7m 
 105m 
  104m 
C2H4
    C4H6
  C4H8
   C5H10
1ρ +2π
    2ρ  + 2π
      3ρ 
     3π
2-Methy1-4-n-propylhexane
2-n-propy1-4 methylhexane
4-Ethy-6methylheptane
2-Methy1-4ethylheptane
CH3CH2OH 
   CH3COOH
CH3CHO  
CH3-O-CH3
   C6H6+C6H5COOH
   C6H5ONa + C6H5COOH
   C6H5OH + C6H5COONa   
C6H5ONa + C6H5COCl 
HCl
   CCl4 
  H2O    
CsF
an alkali metal
an s-block element
a transition element
Cr3+ 
Mn3+
 Ni2+
  Fe3+
  [Cu(H2O)4]2+ 
   [Cu(OH)4]2+
  [Cu(NH3)4]2+
  [Cu(NH3)2]2+
1s22s22p3
   1s2 2s22p4  
 1s22s22p63s1 
   1s2 2s2 2p63s23p1
  SO32- 
    SO42-
  S4O62-
  S2O8-2
   CO2
   SiO2
  SnO2    
CaO 
     4.0 ×10-5
  4.0 × 10-6
1.6 × 10-10
                 1.6 ×10-9      
 H2(g)  + Br2(g)2HBr(g)     
 C(s) + 2N2O(g)CO2(g) + 2N2(g) 
NH4Cl(s) NH3(g) +HCl(g) 
CO(g) + 2H2(g) CH3OH(g) 
[A] vst
-d[A]dt vst   
  log[A] vst   
      -d[A]dtvst [A]
Zn(s) |Zn2+(aq) | | H+(a=1) | H2 (1 atm) | pt 
H+(a=1) | H2 (1atm) | pt | | Zn(s) | Zn2+(aq) 
H+ (a=1) | H2(1 atm) | pt | | Zn2+(aq) | Zn(s) 
Zn2+(aq) | Zn(s) || H+(aq) | H2(1 atm) |pt
৩৬০
3600
      36 × 106
   36 ×106
28 g N2
        4 gH2    
  17 g NH3 
        4g He 
(3, -4)
(-3,4)
(-3,-4)
(3,4)
 38sq.units  
   83sq. units  
3 sq.units
8 sq. units
1
     35   
53 
45
3x + 7 y -13=0
7x + 3y -13 = 0
7x + 3y +13 = 0
7x -3y -13=0
 2tan x 
tanx1n(cos2x)
 sinxtanx 
   23 (tan x) 32
Created: 4 months ago | Updated: 6 hours ago
1
12
Does not exist
    x2+5 
    2x2 + 7 
  2x2-3
    x2-5
Created: 4 months ago | Updated: 6 hours ago
6 +i
5
9 + 2i
x2-5x+6=0   
3x2-2x+1=0
x2-3x+2 =0 
2x2 - 3x +1=0 
-1
1
  12
4xyz
x2yz  
  xy2z 
  xyz2
2x + 3y -13=0
4x + 3y -17=0
3x + 4y + 17 = 0
3x + 4y -17 =0
13<x or x <1 
      x> 2 or 12  
    x>1
       x<3 or x>1 
4 uints
1 unit
  34 units 
2 units
nπ4
  nπ2
    (4n+1)π8
(4n+1)π2
28   g N2  
   4 g H2 
 17 g NH3 
  4 g He 
Created: 4 months ago | Updated: 1 day ago
 π2 
π28
 π24
  π216
CH3-CH2_OH
CH3-C|CH3-OH        CH3
CH|CH3-OHCH3
    H3C-|CH3CH|CH3-CH-OH
CH3COCH3  
CH3COCl
   CH3CONH2
      CH3COOH 
Created: 4 months ago | Updated: 1 month ago
Isn't
aren't they
haven't they
weren't they
1011001
1100101
1000101
1010101
plasmodium vivax
plasmodium ovale
plasmodium malariae
Plasmodium falciparum
এক
তিন
চার
দুই
CFC
NO2
CO2
CH4
আটটি রথ
আট প্রকার ধাতু
ফাঁকি
আট জন অপ্সরী
পঙ্কজ, উৎপল , শতদল, অরবিন্দ
রামা, বামা, ধামা, কামিনী
ক্ষণপ্রভা, সৌদামিনী, চপলা, অরীঙ্গণী
ঘন, বারিদ, জলধর, তরল
এই যে আসুন, তারপর কী খবর?
এই তো আসুন, তারপর কী খবর ?
এই আসুন, তারপর কী খবর?
এই যে আসুন, তারপর খবর কী?
Created: 4 months ago | Updated: 6 hours ago
nobody was hurt
nobody was seriously hurt
some glass cut the texi-driver's face
both the drives were injured.
Created: 4 months ago | Updated: 6 hours ago
wants
is wanting
was wanting
has wanted
Created: 4 months ago | Updated: 1 day ago
isn't it
wasn't he
isn't he
didn't he
   -A2      
-B2
1
less
greater
the same as before
vary with latitude
E. Rutherford
J. Chadwick
J. Thomson
H. Yukawa
Propyl alcohol
Butyl alchhol
Isopropyl alcohol
AmylAmyl alcohol
-2i
2i
2
  (6-15   0-3) 
(32 -1-5)  
   (1-2 015)
  (10 -5-2)
Nymphaea nouchali
Nymphaea nouchalli
Nymphea nouchalli
Nymphea nouchali
ঝাঁটা
শ্রমের মূল্য
সহজে অর্জন
ভাতা
Created: 4 months ago | Updated: 6 hours ago
confused and ddisorganized
six o'clock to seven o' clock
a game played by six seven persons
early evening
Created: 4 months ago | Updated: 6 hours ago
You are write your name at the top of each paper
You are to write your name at the top of each sheet of papers
You are to write your name at the tops of each sheet paper
You are to write your name at the top of each sheet of paper

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