Correct Answer:- Option-B

Question57:-Which of the following is microwave inactive 7
4012
B:-NO
‏0:ج‎
‎D:-CO
‎Correct Answer:- Option-A

Question58:-The polarographic limiting current which are controlled not only by the rate of diffusion of the reactive species,

but also by the rate of some chemical reaction related to the electrode process are known as :

A:-Diffusion current
B:-Residual current
C:-Migration current
D:Kinetic current
Correct Answer:- Option-D
Question59:-Addition of *Br_2" to methyl acetylene yielding trans 1,2-trans 1,2-dibromopropene is :
A:-Stereoselective and stereospecific
B:-Stereospecific
C:-Stereoselective
D:-None of these
Correct Answer:- Option-C
Question60:-Who proposed the dead stop end point method in amperometry 7
A:-Bawden
B:-Foulk
C:-Neuberger
D:-Cooke
Correct Answer:- Option-B
Question61:-The best method to determine the size of the Au nanoparticles is :
A:-STM
B:-SEM
C:-AFM
D:-LFM
Correct Answer:- Option-B
Question62:-The valency of an element can be determined by coulometry using the equation :

_ _ 2
ಹ > 96500

~ A × 96900
B:- n

24

56500 قدي"
‎C:- ಧಿ‏

प~ 56500
D:- ‏چگچھ‎ × 1

Correct Answer:- Option-A
Question63:-The chromatographic process in which the separation of the sample components takes place according to
molecular size are called :
A:-Adsorption chromatography
B:-Partition chromatography
C:-Exclusion chromatography
D:-lon exchange chromatography
Correct Answer:- Option-C
Question64:-Which method detects the smallest particles 7
‏۷۹-ھ‎
‎B:-AFM
‎C:-SEM
‎D:-STM
‎Correct Answer:- Option-D
Question65:-Which is an example for natural inorganic anion exchanger 7
A:-Wood