Ethylene Chloride

Potassium Pemanganate

Sulphuric Acid

Calcium Sulphate

Propane

$x^2-5px+2q=0$

$x^2-2px+3=0$

$x^2-qx+p=0$

$x^2-3px+2p=0$

$x^2-px+q=0$

$\frac{1}{3}$

0

$\frac{1}{3}$

$\frac{1}{2}$

$\propto$

3024

126

1512

124

370

1

i

$1\pm i$

$-1\pm i$

$\pm \sqrt{1+\sqrt{2}i}$

0

$1n 6$

$1n 6xyz$

$1n xyz$

$21n 6xyz$

462

332

232

231

233

$\sqrt{3}$

$\frac{\sqrt{3}}{2}$

$\frac{\sqrt{3}}{5}$

$\frac{\sqrt{1}}{2}$

$\frac{\sqrt{3}}{7}$

$\frac{3\pi }{2}$

$\frac{3\pi }{3}$

$\frac{3\pi }{4}$

$\frac{2\pi }{3}$

$\frac{\pi }{2}$

$22.5°$

$30°$

$45°$

$90°$

$60°$

8 বর্গ একক

6 বর্গ একক

12 বর্গ একক

9 বর্গ একক

7 বর্গ একক

$F=\sqrt{5 }$ একক

$F=\sqrt{3 }$ একক

$F=\sqrt{2 }$ একক

$F=\sqrt{\frac{3}{2} }$ একক

$F=\sqrt{\frac{3}{7} }$ একক

$f=2m/se{c}^2$

$f=3 m/se{c}^2$

$f=5 m/se{c}^2$

$f=4 m/se{c}^2$

$f=6 m/se{c}^2$

$10\sqrt{3 m}$

$10 m$

$5\sqrt{2 m}$

$15 m$

$10\sqrt{2 m}$

$\frac{7}{52}$

$\frac{15}{26}$

$\frac{11}{13}$

$\frac{7}{13}$

$\frac{9}{13}$

57

67

77

47

75

$3x-2y=0$

$5x-4y=\pm 5$

$2x-y+9=0$

$3x-7y\pm 4=0$

$7x-4y\pm 8=0$

$x^2+y^2+6x-4y+12=0$

$x^2+y^2+4x+6y+12=0$

$x^2+y^2-4x+6y+12=0$

$x^2+y^2-4x+6y+13=0$

$x^2+y^2-6x-4y+13=0$

y=4

y=6

x=6

y=-6

x=-4

${\cos }^{-1}\frac{16}{21}$

${\cos }^{-1}\frac{3}{7}$

${\cos }^{-1}\frac{4}{21}$

${\cos }^{-1}\frac{8}{21}$

${\cos }^{-1}\frac{5}{21}$

12

-12

-147

147

168

-2,4

2,-2

2,-4

3,-3

2,-3

$\sqrt{\frac{3}{2}}$

$\frac{1}{\sqrt{2}}$

$\frac{\sqrt{3}}{4}$

$-\frac{1}{2}$

$\frac{\sqrt{3}}{5}$

$e^{2x}+5+c$

$\frac{1}{4}{e}^{4x}+c$

$e^{3x}+c$

$e^{4x}+5+c$

$e^x+++c$

$\frac{1}{6} 1n2$

$2 ln 6$

$\frac{1}{2} ln 6$

$\frac{1}{3} ln 2$

$6 ln 3$

2 : 1

$\sqrt{3 }: 2$

1 : 2

$\sqrt{3 }: 1$

$1: \sqrt{3 }$

$20 m/se{c}^2$

$40 m/se{c}^2$

$60 m/se{c}^2$

$80 m/se{c}^2$

$100 m/se{c}^2$

1 sec

2 sec

3sec

4 sec

5 sec

5m

10m

15m

20m

25m

$1.745 \times {10}^{-5} m/sec$

$1.745 \times {10}^{-6} m/sec$

$1.745 \times {10}^{-3} m/sec$

$1.745 \times {10}^{-2} m/sec$

$1.745 \times {10}^{-1} m/sec$

16N

13N

6N

3N

1N

$20.11 gm-c{m}^2/s$

$20.11 kg-m^2/s$

$2.011 kg-m^2/s$

$201.1 gm-c{m}^2/s$

$201 kgc{m}^2/s$

2.73 H.P.

27.37 H.P.

273 H.P.

27 H.P.

273.68 H.P.

5.4 sec

4.5 sec

2.25 sec

22.5 sec

3.5 sec

$\pi \sec$

4 sec

0.4 sec

0.04 sec

40 sec

32 J

0.32 J

320 J

3200 J

3.2 J

6 Nos

10 Nos

11 Nos

22 Nos

33 Nos

$\frac{1}{2}\times$ বস্তর আকার

$3\times$ বস্তর আকার

$\frac{1}{4}\times$ বস্তর আকার

$\frac{1}{3}\times$ বস্তর আকার

$2\times$ বস্তর আকার

+4D

-4D

+6D

-5D

-6D

$7.5\times {10}^{11 }kg$

30,000 kg

300 kg

3 kg

30 kg

$1.500\times {10}^5$ days

$6.650\times {10}^5$ days

$4.475\times {10}^5$ days

$5.475\times {10}^5$ days

$10.950\times {10}^5$ days

$3.8 m/s^2$

$9.8 m/s^2$

$0.196 m/s^2$

$0.196 cm/s^2$

$1.96 m/s^2$

$3.2 \times {10}^6 m$

$2.6 \times {10}^{6 }m$

$1.6 \times {10}^{6 }m$

$4.9 \times {10}^{6 }m$

$6.4 \times {10}^{6 }m$

$3.54\times {10}^{-6} N$

$2.54 \times {10}^{-6} N$

$2.56\times {10}^{-6} N$

$2.54\times {10}^{-3} N$

$25.4\times {10}^{-6} N$

$12.8 m/s$

$128 cm/s$

$1280 cm/s$

$128 m/s$

$1280 m/s$

$28.28\times {10}^8 m/s$

$2.23\times {10}^8 m/s$

$1.63\times {10}^8 m/s$

$16.33\times {10}^3 m/s$

$2.83\times {10}^5 m/s$

283 K

566 K

849 K

1132 K

1415 K

$100°F$

$160°F$

$320°F$

$273°F$

math xmlns="http://www.w3.org/1998/Math/MathML">460°F

55.55 cm

33.33 cm

45.00 cm

48.44 cm

44.44 cm

$3.77\times {10}^{-7} \Omega m$

$12 \Omega m$

$2.77\times {10}^{-7} \Omega m$

$6 \Omega m$

$4.77\times {10}^{-7} \Omega m$

$11 \Omega$

$22 \Omega$

$33 \Omega$

$44 \Omega$

$55 \Omega$

84.88 J

86.46 J

171.76 J

175.0 J

173.32 J

40

16

95

71

24

2.14 M

1.007 M

0.53 M

0.10M

1.07 M

1.03 gm

0.51 gm

2.06 gm

0.10 gm

1.003 gm

0.5766 gm

0.5680 gm

0.5860 gm

0.5679 gm

0.0535 gm

$-455.41 \frac{KJ}{mol }$

$-515.44 \frac{KJ}{mol }$

$-525.45 \frac{KJ}{mol }$

$-540.42 \frac{KJ}{mol }$

$-550.21 \frac{KJ}{mol }$

0.20

0.46

0.32

0.40

0.25

Chlorobenzene

Diphenyl

Benzene

Aniine

O- aminophnel

65.38 ton

81.38 ton

16 ton

130.76 ton

80.34 ton

884.92 cals

$14.19\times {10}^{-4}$ cals

$3.39\times {10}^{-11}$ cals

$932.5$ cals

$1.49\times {10}^{-7}$ cals

$H_{2}S + Dil HCI$

$N{H}_4 \left(OH\right) + N{H}_4 CI$

$H_{2}S +N{H}_4 \left(OH\right) + N{H}_4 CI$

$N{H}_{4}C{O}_3+N{H}_{4}CI +N{H}_4 \left(OH\right)$

$N{H}_4 \left(OH\right)+N{H}_{4}CI +HCI+BaC{O}_3$

The Arhenius concept

The Bronsted concept

The Lewis concept

The Lux-Flood concept

The Usanovich concept

385472 কুলম্ব

96368 কুলম্ব

192736 কুলম্ব

289104 কুলম্ব

578208 কুলম্ব

ক্রািইসোকোল

কপার পাইরাইটস

লিনাসাইট

ম্যালাকাইট

অ্যাজুরাইট

ক্যাথোডের আকার

আধানের পরিমাণ ও ধাতব আয়নের আধান নম্বর

ক্যাথোডের আকৃতি

ধাতুর প্রকৃতি

তড়িৎ বিশ্লেষ্য দ্রবণের ঘনত্ব

16.736 J

200.832 J

200.832 KJ

403.664 KJ

401.664 J

4.50

4.65

5.02

5.25

5.32

$2.26\times {10}^4 min$

$2.65\times {10}^5 min$

$2.96\times {10}^4 min$

$3.01\times {10}^5 min$

$2.66\times {10}^4 min$

0.758 volt

0.758 volt

0.379 volt

0.778 volt

0.788 volt

$C{H}_{3}C{H}_{2}Br+Na\stackrel{ ether }{\to } C{H}_3-C{H}_3+NaBr$

$C{H}_3-C{H}_{2}Br+NaCI\stackrel{ alcohol }{\to } C{H}_3-C{H}_{2}CI+NaBr$

$2C{H}_3-C{H}_{3}Br+2Na\stackrel{ alcohol }{\to } C{H}_3-C{H}_3+2NaBr$

$2C{H}_3-C{H}_{3}Br+2Na\stackrel{ ether }{\to } C{H}_3-C{H_2}_{}-C{H_2}_{}-C{H}_3+2NaBr$

$2C{H}_3-C{H}_{3}Br+Mg\stackrel{}{\to } C{H}_3-C{H}_3+MgCI$

0.091 Pa

90.9 Pa

9.1 PPa

0.91 Pa

900.1 Pa

0.18 M

0.09 M

0.05 M

0.005 M

0.0005 M

$C_6{H}_{5}ON\left(aq\right)+H_{2}O\left(I\right)+C{O}_2\left(g\right)\to C_6{H}_{2}OH\left(aq\right)+NaHC{O}_3\left(aq\right)$

$3C{H}_{3}C{H}_{2}OH\left(I\right)+P{1}_3\left(I\right)\stackrel{∆}{\to }3C{H}_{3}C{H}_{2}1\left(I\right)+H_{3}P{O}_3$

$C{H}_3(C{H}_2{)}_{2}CI+NaOH(aq\left)\stackrel{∆}{\to }C{H}_3\right(C{H}_2{)}_{2}OH)+NaCI$

$C_{6}H{(}_{4}C{H}_3)H_2\to C_6{H}_6+C_2{H}_6$

$C_{6}HC{I}_5 + C{I}_2 \to C_{6}C{I}_6 +HCI$

$0.09 mol. d{m}^{-3} mi{n}^{-1}$

$0.01 mol. d{m}^{-3} mi{n}^{-1}$

$0.1 mol. d{m}^{-3} mi{n}^{-1}$

$0.001 mol. d{m}^{-3} mi{n}^{-1}$

$0.45 mol. d{m}^{-3} mi{n}^{-1}$

He is carefully examining the script

He is carefully looking the script

He is carefully examining the script with full care

He is carefully looking after the script

He is observing the e script carefully

Relative pronoun

Pronominal adjective

Reciprocal pronoun

Interrogative pronoun

Numeral adjective

He is rich so he is unhappy

He is so that he is unhappy

He is rich that is why he is unhappy

He is rich and unhappy

He is rich but unhappy

I saw thet a book was read by him

He was reading a book seen by me

He was seen reading a book by me

I saw him a book was read

He was reading a book that seen by me

frugalish

economize

use

waste

save

updated

devoted

estimated

crowded

thought

alerted

admonished

atoned

admired

astounded

to go

going

go

want

leaving

one of the larger

one of largest

larger

one of the largest

largest

travel by train

to travel on train

travelled by train

travelling by train

travel in train

costly things

heavy things

property

a bag full with money

leaving nothing behind

foot

arms

legs

hand

nose

to

them

wearing

for

at the country club

knows to

the

without

taking

apart

the

saw

pulse

of

the patient

সে তাড়াতাড়ি ফিরিয়া আসিবে

সে জলদি ঘুরিয়া আসিবে

সে শ্রীঘ্রই আরোগ্য লাভ করিবে

সে তাড়াতাড়ি আসিবে

সে জলদি চলিয়া আসিবে।

I like writing than reading

I like writing that to reading

I like writing more to reading

I prefer writing to reading

I prefer writing than reading

work

toil

strive

effort

rest

Rita said that was good

Rita said that is good

Rita said that it is good

Rita said that it was good

Rita said to me that was good

was not he

isn’t he

is he

hadn’t he

hasn’t he

Doe

Buck

Duck

Goose

Geese

fewer animals going crazy

a lower death rate

fewer people evacuated

fewer environmental changes

no earthquake

emaciated

tornado

exile

destroy

remove

In 1976, there was an earthquake in China

All birds and dogs in a ten - kilometer radius went wild before the quake

The Chinese have successfully predicted an earthquake and saved many lives

By observing animals behavior scientists perhaps can predict earthquake

Some animals may be able to sense an approaching earthquake

an impending storm

environmental changes

the ten - kilometer radius of the epicenter

the number of people who sill die

an impending earthquake