$27.1\% N{a}_{2}S-14.3\% NaOH+58\% N{a}_{2}C{O}_3$

$27.17\% N{a}_{2}S+58.6\% NaOH+14.3\% N{a}_{2}C{O}_3$

$14.3\% N{a}_{2}S+58.6\% NaOH+27.1\% N{a}_{2}C{O}_3$

$27.1\% N{a}_{2}S+14.3\% NaOH+27.1\% N{a}_{2}C{O}_3$

${}^{131}I$

${}^{127}I$

${}^{129}I$

${}^{126}I$

380 nm-780 nm

100μm-100 cm

0.78 μm-1000μ m

0.000 nm- 0.10nm

Cl>F>Br>I

F>Cl>Br>I

I>Br>Cl>F

F>Br>Cl>I

CO

$A{l}_2{O}_3$

$Pb{O}_2$

$B_2{O}_3$

$K_p=K_c (RT{)}^{∆n}$

$K_c=K_p (RT{)}^{∆n}$

$K_p-K_c= (RT{)}^{∆n}$

$K_p=K_c (T{)}^{∆n}$

1

0.1

13

$6.023\times {10}^{23}$

$6.023\times {10}^{22}$

$6.023\times {10}^{21}$

$3.0115\times {10}^{23}$

$S{O}_2$

$Cl{F}_{2}C-CCl{F}_2$

$COC{l}_2$

$CC{l}_3-N{O}_2$

Acidic

Basic

Amphoteric

Alkalinic

0.9434

0.9938

9.434

0.106

$F{e}^{2+}=1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{4}4s^2$

$F{e}^{2+}=1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{4}4s^1$

$C{u}^{2+}=1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^9$

$Z{n}^{2+}=1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{8}4s^2$

$Ag N{O}^{3+}$

$A{g}^{2+(N{H}_3{)}^{2-}}$

$\left[Ag\right(N{H}_3{)}_2{]}^{+}$

$Ag(N{H}_3{{)}_4}^{-}$

200-400 nm

300-400 nm

20-50 nm

1-100 nm

নীল

লাল

হলুদ

বেগুনি

$K_{2}O$

$CaC{l}_2$

$NaCl$

$CaO$

Maltase

Diastase

Zymase

Beta amylase

antimicrobial

antioxidant

insecticidal

anti-malarial

জ্যামিতিক

আলোক

ক্নেদ্রীয়

অবস্থান

Sodium steate

Sodium chloride

Glycerol

Glycerol palmitate

17.2 min

16.0 min

27.5 min

18.1

$KMn{O}_4$

$N{a}_{2}C{O}_3$

$K_{2}C{r}_2{O}_7$

$H_2{C}_2{O}_{4.}2H_{2}O$

আটা

সেলুরোজ

মোম

স্টার্চ

Protein

Enzyme

Starch

Ploysaccharide

$N{a}_{2}C{r}_2{O}_7$

$N{a}_{2}S{O}_4$

$H_{2}S{O}_4$

$NaHC{O}_3$