1
) In 3rd order , half life is . . . . . . . . . . . . . to square of initial concentration .
A )
directly proportional , B
) inversely proportional ,
C ) equal ,
D ) None of these ,
Correct
Answer : - B ) inversely proportional ,
2
) The value of absolute zero temperature
is . . . . . . . . . . . . . . ,
A )
0 K , B
) 100 K ,
C ) 273 K , D
) None of these ,
Correct
Answer : - A ) 0 K ,
3
) Debye intermolecular forces are btw . . . . . . . . . . . . . ,
A )
polar , B ) Non – polar
,
C ) Non polar and polar , D )
Noneofthese. ,
Correct
Answer : - C) Non polar and polar ,
4
) The least value of e/m value for
positive rays is for . . . . . . . . . . . . ,
A
) Hydrogen atom , B
) Neon atom ,
C ) Helium atom , D
) None of these ,
Correct
Answer : - A ) Hydrogen atom ,
5
) Activation energy for the endothermic
reaction is . . . . . . . . . . . . . . than for exothermic reaction.
A )
much greater , B
) much lower ,
C ) equal , D
)None of these ,
Correct
Answer : - A ) much greater ,
6
) The total no. of isomers of a
disubstituted benzene compound is . . . . . . . . . . . . . ,
A )
2 , B
) 3 ,
C ) 4 , D ) None of these ,
Correct
Answer : - B ) 3 ,
7
) Kolbe's synthesis of sodium salt of
butanoic acid gives . . . . . . . . . . . . . . . . . ,
A )
n - Hexane , B ) n - octane ,
C )
both , D ) None of these
,
Correct
Answer : - A ) n - Hexane ,
8
) Dichlorine heptoxide react with water
to produce . . . . . . . . . . . . . . ,
A )
Hydrochloric acid , B
) Sulphuric acid ,
C )
Perchloric acid , D )
None of these ,
Correct
Answer:- C ) Perchloric acid ,
9
) Brikland - edge process is used for
the production of . . . . . . . . . . . . . . . by the
liquation of air .
A ) Nitro oxide , B
) dinitrogen ,
C ) NaCl , D
) None of these ,
Correct
Answer : - B ) dinitrogen ,
10
) Rate of reactions of most organic
compounds are . . . . . . . . . . . . . . .
A )
fast , B ) Slow ,
C ) depends on temperature , D ) None of these ,
Correct
Answer : - B ) Slow ,
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