Related Questions

For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a
A Batch reactor is preferred over a single CSTR for high yield
B Tubular reactor is preferred over a single CSTR for high yield
C Both A and B
D Single CSTR is the most suitable
In a reversible chemical reaction (where, Δx = number of moles of products-number of moles of reactants )
A Addition of inert gas favours the forward reaction, when Δx is positive
B Pressure has no effect on equilibrium, when Δn = 0
C Addition of inert gas has no effect on the equilibrium constant at constant volume for any value of Δx (+ ve, - ve) or zero)
D All of the above
The process of removing unwanted part of an image is called -
A Hiding
B Cropoing
C Bordering
D Cutting
রাসায়নিক বিক্রিয়ায় বিক্রিয়ক ও উৎপাদের (reactant and product of a chemical reaction ) মধ্যে মূল পরিবর্তন ঘটে কোনটি?
A অভ্যন্তরীণ শক্তি
B স্থিতি শক্তি
C গতি শক্তি
D বন্ধন শক্তি
Unauthenticated and unwanted mails are stored in-----
A Inbox
B Sent box
C Spam
D Draft box
An unwanted repetitious message , such as unsolicited bulk e-mail is known as
A Spam
B Trash
C Calibri
D Courier
In which folder the unwanted mails are stored?
A Drafts
B Unread
C Spam
D Archive
Messages from one computer terminal can be sent to another by using data networks. The message to be sent is converted to an electronic digital signal, transmitted via a cable, telephone or satellite and then converted back again at the receiving end. What is this system of sending messages called?
A Paperless office
B Electronic mail
C Global network
D Electronic newspaper
E None of the above
Scheme-1: C6H5N2Cl→CuCNC6H5CN→H2o/H+C6H5COOH→∆Product-I Scheme-2: C6H5NO2→Fe/HCLC6H5NH2→N2NO3+HCL, 273KC6H5N2Cl→H2O/H+Product-II Scheme-3: CH3COOH→NH3CH3CONH2→NaOBrProduct-III উল্লিখিত Scheme সমূহে Product-I, Product-II এবং Product-III হলো যথাক্রমেঃ
A C6H5COONH4, C6H5Cl and CH3OH
B C6H5CONH2, C6H5NH2 and CH3OH
C C6H5CONH2, C6H5NH2 and CH3NH2
D C6H5CONH2, C6H5OH and CH3OH
A chemical reaction is of zero order, when the reaction rate is (where, CA = concentration of reactant)
A $$ \propto {\text{CA}}$$
B $$ \propto \frac{1}{{{\text{CA}}}}$$
C Independent of temperature
D None of these

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