"Co-polymers" consist of two different monomers ("a" and "b") joined in an alternating fashion (ababab...). Block co-polymers also consist of two different monomers, but in this case blocks of polymer containing only a units are joined to blocks of polymer containing only b units (aaaaabbbbb...). How might block co-polymers be synthesized? : Polymer Chemistry

1049

What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?

8807

Explain the relations between number of carbon atoms in alkanes and retention time ?

2072

Actinium-227 can decay into Thorium-227. Explain the significance of this decay chain and its applications, particularly in nuclear physics.

605

Arrange the following in their increasing polarity order Carboxylic acid, hydroxyl, phenyl, amino and aldehyde

1696

In which situation we require to prepare the standard solution from sample in Related substance method?

711

What is the unit of conductance?

1007

What is pka of acid?

1117

Explain the difference between the law of multiple proportions and the law of definite proportions?

966

if your impurity coeluting with each other in that situation how require to set specification? is it acceptable?

900

Define an origin of electrode potential? : Electrochemistry Corrosion

983

Why we use potassium dichromate in control of absorbance in uv region and copper sulphate in control of absorbance in visible region?

2912

what is meant if aluminium sulfate contains 30% basicity?

2095

Protactinium-231 decays to Uranium-235. How is this decay used in radiometric dating and the determination of geological ages?

515

Does ethylene polymerize under mild conditions in the absence of a catalyst? : Polymer Chemistry

1189