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Dipole-dipole forces are attractive forces between the positive end of one polar molecule and the negative end of another polar molecule. They are much weaker than ionic and it happens when the two molecules are close together!

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Mechanism of azo dye Para Red synthesis?

Azo food dyes don't set off allergic reactions as such, though some azo textile dyes can cause your skin to be hypersensitive. The mechanism for why tartrazine increases allergic reactions is not yet known.


How a chain terminate by coupling in polythene?

A chain in polythene can terminate by coupling through a reaction that involves the joining of two polymer chains. This coupling reaction can occur during the polymerization process or be induced post-polymerization through the use of coupling agents. Termination by coupling can lead to the formation of branched or cross-linked structures, altering the properties of the polythene material.


Why do not aliphatic amines give coupling reaction?

Aliphatic amines do not typically give coupling reactions due to their limited aromatic character, which is necessary for coupling reactions to occur effectively. Aromatic amines are more likely to undergo coupling reactions because they possess a delocalized pi system that stabilizes the intermediates formed during the coupling process.


Briefly describe the following terms as they apply to RF amplifier circuits- top coupling?

Top coupling is a method of connecting the input and output of an RF amplifier circuit using capacitors on the top side of the circuit. It allows for direct coupling between stages without the need for additional components. Top coupling helps maintain the impedance matching and overall performance of the amplifier.


What is the influence of Cohesion and coupling for maintenance?

Coupling is an important metric. If the module P. is tightly coupled to module Q. then a change to module P. may require a corresponding change to module Q. If this change is made, as required, during integration or postdelivery maintenance, then the resulting product functions correctly; however, progress at that stage is slower then would have been the case had coupling been looser. It has been shown that the stronger (more undesirable) The coupling, the greater the fault proneness. In other words, it is easy to believe that strong coupling can have a deleterious effect on maintainability.

Related Questions

How can I open a jammed bonnet lock on a ford focus car is late 2004 model?

Sometimes the plastic coupling breaks, the coupling links the cable from the key barrel to the actual locking latch mechanism. Applying pressure to the coupling (pushing the cable towards and into the latch mechanism) and turning the key can open the bonnet if this is the reason why the bonnet is jammed.


What is mean by coupling?

It means to form couples.


What do you check when making a visual check of coupling of a vehicle?

When performing a visual check of the coupling of a vehicle, verify that the coupling mechanism is properly secured and free of damage or excessive wear. Inspect for any signs of corrosion or rust on the coupling components. Additionally, check that all safety pins and locking devices are in place and functioning correctly. Lastly, ensure that the alignment between the coupling and the towing vehicle or trailer is correct.


What are the types of coupling in software engineering?

control coupling content coupling common coupling data coupling external coupling message coupling


What are types of mechanical coupling?

There are many like flexible coupling, jaw coupling, sleeve coupling, tire coupling, pin and bush coupling, rigid coupling, etc


Which coupling gives the higher gain in case of amplifier - a Capacitor coupling b Impedance coupling c Transformer coupling?

transformer coupling


Applications of Slider-crank mechanism?

• Reciprocating engine • Rotary engine • Oscillating cylinder engine • Hand Pump • Scotch Yoke • Oldham's coupling • Elliptical Trammel


What is RC coupling?

rc coupling is a coupling that involves capacitor aand resistor


Which coupling gives high gain in case of amplifier?

no.transformer coupling gives higher gain


Which Coupling produces minimum interference with frequency response?

Direct coupling


Mettler sonicator sreen displays error 2 what does that mean?

insufficient ultrasound coupling


What do you mean by coupling and what are the coupling devices used in an amplifier?

different electronics device used couopling methodology so it is used fo connecting more n more signas togheter