Fill Ups & True False of Electrochemistry , Past year Questions JEE Advance, Class 12, Chemistry JEE Notes | EduRev

Class 12 Chemistry 35 Years JEE Mains &Advance Past yr Paper

JEE : Fill Ups & True False of Electrochemistry , Past year Questions JEE Advance, Class 12, Chemistry JEE Notes | EduRev

The document Fill Ups & True False of Electrochemistry , Past year Questions JEE Advance, Class 12, Chemistry JEE Notes | EduRev is a part of the JEE Course Class 12 Chemistry 35 Years JEE Mains &Advance Past yr Paper.
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Fill in the Blanks

1. Of the halide ions, _____ is the most powerful reducing agent. (1978)

Ans:  I

Solution:   ( ∵ I2 is weakest oxidising agent)

2. The more ............... the standard reduction potential, the ............... is its ability to displace hydrogen from acids. (1986 - 1 Mark)

Ans:  negative, greater
Solution:  negative, greater; Among the various metals, since sodium has the minimum reduction potential, it must be strongest reducing agent. In general, more the reduction potential
 lesser is its reducing action.


3. The electrical conductivity of a solution of acetic acid will be .............. if a solution of sodium hydroxide is added. (1987 - 1 Mark)

Ans:  increased
 

True/False 

The dependence of electrode potential for the electrode Mn+ /M with concentration under STP conditions is given by the expression :
Fill Ups & True False of Electrochemistry , Past year Questions JEE Advance, Class 12, Chemistry JEE Notes | EduRev                     (1993 - 1 Mark)

Ans: False 

Solution :  False : When the temperature is 273, the value of the factor will come out as 0.0541 instead of 0.0591. The value 0.0591 comes out at 298 K and not at 273 K.

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