1
) If we consider 1/6 in place of 1/12
mass of carbon atom as atomic mass unit , the mass of 1 mole of substance will
remains ……………..
A ) Unchanged , b ) Changed ,
C ) Both , d ) None of these .
Correct
answer : - A ) Unchanged ,
2
) Modern atomic weight is based on ……………
A ) C-6 , b ) C-12 ,
C ) Both , d ) None of these .
Correct
answer : - b ) C-12 ,
3 ) When kc is large , reaction
will go ………… (Forward) . When kc is small , reaction will go ………………
A ) Reverse , b ) Again Forward ,
C ) Both , d ) None of these .
Correct
answer : - A ) Reverse ,
4
) According to law of mass action, the
rate of a chemical reaction is proportional to the Product of molar
concentration of ……………
A ) reactants , b ) Products ,
C ) Both , d ) None of these .
Correct
answer : - A ) reactants ,
5
) Atomic no. is discovered by Mosley in ………….…………..
A ) 1911 , b
) 1912 ,
C ) 1913 , d ) None of these .
Correct
answer : - C ) 1913 ,
6
) Chemical properties of an atom depends
on……….
Correct answer : - Number of valence electrons or atomic no.
7
) Kc has units , if no. of reactants and
products are .............. ,
A ) Equal , B
) Unequal ,
C ) Both of these , D ) Both of these ,
Correct
Answer : - B
) Unequal ,
8 ) For
endothermic reaction to be spontaneous , temperature should be
..................... ,
A ) High , B ) Low ,
C ) Not effected by temperature , D
) None of these ,
Correct Answer : - A ) High ,
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