Test Mode Reading Mode Right = 0 Wrong = 0

সকল বিষয়

α-particle
β-particle
γ-ray
neutron
None
6
3
Contact process
Haber process
Solvay process
Ostwald process
None
2.56
5.32
1.26
7.98
None
1s22s22p43s1
1s22s22p5
1s22s22p63s23p5
1s22s22p63s23p2
None
6
3
5
Light Naphtha
Kerosene
Gasoline
Petrol
None
H2CO3 + H2O H3O+ + HCO3-
CO2 + H2O 2H+ + CO32-
HCO3-  H+ + CO32-
HCO3  H+ + HCO3-
None
None
4.01 dB
3.01 dB
2.02 dB
1.03 dB
0.51 dB
38.5°
36°
37.17°
.37°
36.2°
8.50×10-2kg-cm2  
7.25×10-3kg-cm2 
8.49 ×10-2kg-cm2
   8.49 ×10-3kg-cm2
8.94 ×10-1kg-cm2
41.4 eV
4.14 eV
0.41 eV
0.04 eV
0.004 eV
1.27×104Y-1
2.27×10-4Y-1
3.27×10-4Y-1
4.27×10-4y-1
 5.27×10-5Y-1
0.0001 M HC1> 0.001 M HC1> 0.01 M NaOH
NH4 C1(aq)> H2O(1) > NaHCO3 (aq)
NaHCO3 (aq)> H2O(1)> NH4C1 (aq)
NaC1 (aq)> Na2CO3 (aq)> HCI (aq)
0.1 M Ca (OH)2> 1.0 M HF> 1 M KOH
নিউক্লিয় ফিউশান বিক্রিয়া চেইন বিক্রিয়া নয়।
তাপহারী বিক্রিয়ায় উৎপাদ অপেক্ষা বিক্রিয়কের আভ্যন্তরীণ শক্তি বেশি থাকে না।
নিউক্লিয় ফিউশান বিক্রিয়া নিউক্লিয় বর্জ্য অবশেষ থাকে না।
নিউক্লিয় বিক্রিয়ায় মৌলের প্রোটন সংখ্যা অপরির্বিতত থাকে।
21H + 31H 43He + 10n + শক্তি।
3.057×1019 
3.059×1016
1.263×1016 
1.263×1018 
3.019 ×1014 
Created: 9 months ago | Updated: 1 day ago
[Cr Br(H2O)6]Br2
[CoCI2 (NH3)4SO4
[PtCI (NH3)6]3+
[Fe(OH)2(H2O)6]+
[Co(OH)(NH3)5]2+
স্থিতিশীল অক্সাইড MO এবং M3O4 গঠন করে।
মৌলটি অবস্থান্তর মৌল।
মৌলটি রঙিন যৌগ গঠন করে।
মৌলটি গ্রুপ VIIB - এ অবস্থিত।
মৌলটির সংকেত হলো Co ।
হীরক কেলাস একটি বৃহৎ অণু।
হীরক অণুতে সমযোজী C - C বন্ধনগুলো দৃঢ়।
হীরকের মধ্যে আন্তঃআণবিক আকর্ষণ বল অত্যন্ত তীব্র।
হীরক গলানোর জন্য সমাযোজী বন্ধন ভাঙ্গা প্রয়োজন হয়।
হীরকে সকল র্কানগুলো sp3 সংকায়িত।
-286 KJmol-1
-302 KJmol-1
270 KJmol-1
-262 KJmol-1
316 KJmol-1
2713AI
2311AI
2413AI
2011AI
2211AI  
Acid anhydride
Ethanol
Ethanoic anhydride
Mcthnol
Ethyl cthanctc
Group -II
Group - III(A)
Group – III (B)
Group-1V
Group-V
0.1352 volt
0.1399 volt
0.1450 volt
0.1448 volt
0.1496 volt
1.2046×1023 
3.0125×1023
3.0125×1022
6.023×1022
6.023×1023
বেনজিয়ক এডিস
বেনজয়িক
বেনজালডিহাইড
ইথাইল বেনজনি
মিথাইল বেনজয়িক এসিড
x2-8x-12=0
x2+2x-15=0
x2+12x+15=0
x2+15x+2=0
x2+12x+8=0
X-9x2x2+18+94x-12+94x+12
X+9x2x2+18-94x-12-94x+12
X-9x2x2+18-94x-12+94x+12
X-92x2+18+94x-12+94x+12
X+9x2x2+18+94x-12+94x+12
9141071014677
771098912911
61010691181113 
1211118913877
1288119711137
e3-14
e-4+14
e-4-14
e4-14
e4+14
1+2nn
3n-112
3n-112
n-56
11n-92 বিঃদ্রঃ-(নিজে চেষ্টা করুন সঠিক উত্তরটি জানা নেই)
1p-1q
1q-1p
1q+1p -pq
1-pq
 1+pp
0.π2
π4,π2
π2,3π4
0,π2
π4,π4
1
-1
2
-2
3
(1.0)
(10.0)
(12.2,0)
(5,0)
(4,0) বিঃদ্রঃ-(নিজে চেষ্টা করুন সঠিক উত্তরটি জানা নেই)
(u4+y)-1+v
ysin-1(u2+y2)+v
ysin y(u2+y)+v
(u4+y)-2+v
a(1+cosθ)2
a(1-cosθ)2
aa(1-cosθ)2
aa(1+cosθ)2
a(1+cosθ)2 বিঃদ্রঃ-(নিজে চেষ্টা করুন সঠিক উত্তরটি জানা নেই)
7x
9x
2x+3
3x+5
2/x
Created: 9 months ago | Updated: 1 month ago
2(loge3)3
2(loge3)2
2(logee)3
2(logee)2
12tan-1(esec2x)+c
tan-1(12esec2x)+c
2tan-1(esec2x)+c
tan-1(2esec2x)+c
12tan-1(e-sec2x)+c
Created: 9 months ago | Updated: 2 weeks ago
-π2
π4
3π4
5π2
3π2
necessitate
Necessitated
necessity
necessarily
Necessarible
reflexive
Interrogative
relative
demonstrative
personal
Created: 3 months ago | Updated: 8 hours ago
realize
realistic
really
realized
Real
Descriptive
Distributive
Quantitative
demonstrative
Possessive
noun
verb
adjective
Preposition
adverb
If I were you, I will not do this
If I were you, I would not do this
If I were you, I shall not do this
If I were you, I will not have done this
If I were you, I might not do this
He has stolen his pen.
They stolen his pen
Someone has stolen his pen
you stolen his pen
None of these
I saw that a book was by him
He was reading a book seen by me
He was seen reading a book by me
I say him that a book by me
He was reading a book that seen by me
He is very dull and he cannot understand his lesson
He is too dull to understand his lesson
He is too dull that he cannot understand his lesson
He is too dull that he does not understand his lesson
He is being dull he can not understand his lesson
He said that do not eat all the biscuits
He requested me kindly not to eat all biscuits
He asked me kindly not to eat all the biscuits
He asked me not to eat all the biscuits
He said that please do not eat all the biscuits
Created: 3 months ago | Updated: 1 day ago
I will go by the 9-30 train
I will go by the 9-30 O'clock train
I will go by the train of 9-30 O'clock
I will go to the train of 9-30
I will go to the 9-30 train
He is so weak that he cannot walk
He is too weak so that he cannot walk
He is enough weak so he cannot walk
He is such weak that he cannot walk
He is so weak so he cannot walk
Created: 9 months ago | Updated: 1 month ago
Executrix
Executress
Executree
Executraie
Execlency
The wall is falling
The wall is going to fall
The wall is falls
The wall is about to fall
The wall had fallen
সে এত বুদ্ধিমান যে একথা বোঝে।
এ কথা বুঝার মত তার বুদ্ধি আছে।
সে একথা বুঝতে পেরেছে।
এ কথা বুঝার মত তার যথেষ্ট বুদ্ধি আছে।
সে এত বুদ্ধিমান যে কথাটি বুঝেছে।
upon
with
over
to
against
Created: 9 months ago | Updated: 1 week ago
Good partner
Well wisher
husband
Good lover
wife
Created: 9 months ago | Updated: 2 weeks ago
louses
Lise
Lice
Lousee
Loiie
Created: 9 months ago | Updated: 2 weeks ago
liar
Unwise
Devil
vice
traitor
Was not he?
is he?
Was he?.
Wasn`t he?
Had he?
Created: 9 months ago | Updated: 2 weeks ago
Because it gives sound directly to the inner ear
Because it gives vibrations to the magnet
Because it transmits sound faster to the ear
Because it transmits vibrations directly to the magnet and then to the inner ear
Because it takes little time to produce clearer sound.
Created: 9 months ago | Updated: 2 weeks ago
All people can get help from this device
Only those who have ear infection
Only those who have problem in inner ear
Only those who have problem in middle ear
Only those with a hearing loss caused by infection other in middle ear