Related Questions

কক্ষ তাপমাত্রায় 1.0 mole এসিটিক এসিড এবং 1.0 mole ইথানলকে মিশ্রিত করা হলো। সাম্যবস্থায় 0.667 mole এসিটিক এসিড ক্রিয়ায় অংশগ্রহণ করলে তার ke এর মান 4.00 হয়। কত মোল এষ্টার উৎপাদিত হবে যদি একই তাপমাত্রায় 4.0 mole এসিড এবং 2.0 mole ইথানাল নেয়া হয়।
A 0.333
B 0.667
C 6.0
D 2.0
There are blank spaces in the following passage which have been numbered . These numbers are printed below the passage and against each some words are suggested . Find out the word that best fit the blank spaces. Global Strategies to control infective disease have historically included the erection of barriers to international travel and ___ (24) _______. Keeping people with such deadly disease outside national borders has ___ (25) _______ as an important public health policy in the human immunodeficiency virus (HIV) epidemic . Betwwn 29 and 50 countries ___ (26) _____ to have introduced border restrictions on HIV _ positive foreigners ,usually those planning an ___ (27) ___ stay in the country , such as students , workers or seamen.
A migration
B immigrate
C emigration
D immigration
The highest mountains in Africa, which is not part of any mountains chain, is
A Mount Aconcagua
B Mount Kilimanjaro
C Mount Kosciusco
D Mount Blanc
Dont make any noise, – ?
A should you
B will you
C would you
D could you
"Dont' laugh at the poor" which one of the following specifies the passive form of the sentence ?
A Let not the poor be laughed .
B Let the poor be not laughed at .
C Let not the poor be laughed at .
D Let not the poor are laughed at.
1 mole CO₂ গ্যাস ও 1 mole H₂ গ্যাসের মধ্যে কোনটি তে অণুর সংখ্যা বেশী ?
A দুটোতে সমান
B H₂ এ বেশী
C CO₂ এ বেশী
0.36 mole NH4OH ও  0.18 mole NH4Cl   দ্বারা তৈরি বাফার দ্রবণের pH কত?       pH  [pKb=4.75]
A 4.45
B 5.05
C 9.25
D 8.95
S.T.P তে 2 mole আদর্শ গ্যাসের গতিশক্তি কত হবে? [R = 8.31 J mole-1K-1 ]
A 1300 J
B 2700 J
C 3403 J
D 6806 J
One day Mr. Ahmed was walking ___ a wood ___ the rain.
A in ____ through
B through _____ in
C under ____ in
Before adapting to changes in value , many prefer to ___, to ___ the universally agreed on principles that have been upheld for centuries .
A innovate .... protect
B resist ... defend
C ponder .... subvert
D vacillate ..... publicize

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