0.1 M NH3

0.1 m NaOH

0.1 M NH4Cl

0.1 M CH3COONa

Pipette and Beaker

Pipette and Volumetric flask

Measuring cylinder and volumetric flask

Burette and beaker

PH3

H2O

BF3

NH3

CCl4

NH4+

CH4

SF4

7+

4+

2+

3+

2, 4-Dimethaylhexanol-4

3,5-Dimethylhexanol-3

1-Ethyl-1,3-Dimethylhexanol-1

1,3-Dimethyl1-1-Ethylbutanol-1

Alkane and Alkyne

Methanil and Ethanol

Aldehyde and Ketone

1ͦ and 2ͦ Alcohol

H2

O2

CH4

C

Gamma ray

Microwave

Visible rasy

X-ray

CH2(NH2)COOH

CH3CH(NH2)COOH

(CH3)2C=CHCl

CH3CH2COOH

i+ii

ii+iii

i+iii

i+ii+iii

HNO3

H2SO4

AlCl3

NH3

বিক্রিয়ার হার কমে

সাম্যবস্থা বামে যায়

বিক্রিয়া হার বাড়ে

সক্রিয়ণ শক্তি ধ্রূব থাকে

ইলেক্ট্রোনেগেটিভিটি

২য় ইলেক্ট্রন আসক্তি

১ম ইলেক্ট্রন আসক্তি

১ম আয়নীকরণ শক্তি

৩

৪

৬

২

2.3 g

23.0 g

46.0 g

11.5 g

Calcium silicate

Calcium aluminate

Magnesium Oxide

Sodium Oxide

sp, sp2

sp, sp3

sp2,sp3

sp, sp2, sp3

$C{H}_{3}OH + C{H}_4$

$C{H}_4$

$C{H}_{3}OH + HCOOH$

$HCOOH$

The pH of a ${10}^{-2}$ M HCl solution is 2

The pH of 0.01 M $N{a}_{2}C{O}_3$ solution is higher than 7

The pH of a 0.01 M NaOH is 12

The PH of a ${10}^{-9}$ M HCl solution is 9

$C_6{H}_5-\stackrel{}{\frac{H}{C}=N-C{H}_3 }$

$C_6{H}_5-\stackrel{}{\frac{H}{C}=N-C_6{H}_5}$

$C_6{H}_5-C{H}_3-COOH$

$C_6{H}_5-COOH$

$2.689\times {10}^{23}$

$26.89 \times {10}^{23}$

$0.2689 \times {10}^{23}$

$26.89 \times {10}^{25}$

$\alpha$ emission

$\beta$ emission

$\gamma$ emission

neutron -emission

$Z{n}^{2+}\left(aq\right) | Zn(s) || Cu(s) | C{u}^{2+} \left(aq\right)$

$Zn\left(s\right) \left|Z{n}^{2+}\right(aq) || C{u}^{2+}(aq\left)\right|Cu\left(s\right)$

$Z{n}^{2+}\left(aq\right) | Zn(s) || C{u}^{2+} (aq) | Cu\left(s\right)$

$Z{n}^{2+}\left(aq\right) | Zn(s) || C{u}^{+1}(aq) |C{u}^{2+}\left(aq\right)$

$4.6\times {10}^4$

$5.9\times {10}^3$

$10.2 \times {10}^3$

$3.2\times {10}^{-3}$

$3d^{7}4s^2 and 3d^7 4s^0$

$3d^{7}3s^2 and 3d^7 3s^0$

$3d^5 4s^1 and 3d^{5}4s^0$

$4d^{2}5s^2 and 4d^{7}5s^0$

$NaCl + AgN{O}_3\to NaN{O}_3 +AgCl$

$Cu+HN{O}_3\to Cu(N{O}_3{)}_2 +NO + H_{2}O$

$SnC{l}_2 + FeC{l}_3\to SnC{l}_4 +FeC{l}_2$

$2 Na + C{l}_2\to 2NaCl$

-114 KJ

+ 57 .0 KJ

-57.0 KJ

-28.5 KJ