1 ) Homologous series in which there is only difference of . . . . . . . . . . . . . . ,
A) only hydrogen , B ) only CH
,
C) only CH2 , D)None of these ,
Correct
Answer : - C) only CH2 ,
2
) . . . . . . . . . . . . . . is used as a best Antiknock compound .
A) Ether , B
) Ethyl bromide ,
C) Tetra ethyl lead , D ) None of these
,
Correct
Answer : - C) Tetra ethyl lead ,
3
) Gasoline evaporates faster than water
because of . . . . . . . . . . . .
A )
strong bonding , B
) viscosity ,
C ) weak vander wall forces , D
) None of these ,
Correct
Answer:- C ) weak vander wall forces ,
4
) If external forces of liquid increases
, so boiling of liquid will ..................
A) No effects, B
) increase ,
C) decrease , D
) None of these ,
Correct
Answer : - B ) increase ,
5
) Elements with partially filed d-orbitals
are called . . . . . . . . . . . . . . . ,
A ) Alkali metals , B
) inner transition metals ,
C ) noble gases , D ) None of these ,
Correct
Answer : - B ) inner transition metals ,
6
) Branched alkanes are . . . . . . . . . . . . . . . . than linear
alkanes.
A) less stable , B)
more stable ,
C) same in stability , D)None of these ,
Correct
Answer : - B) more stable ,
7
) Octane no. of n-heptane is . . . . . . . . . . . . . . ,
A )
0 , B ) 100 ,
C ) 137 , D
) None of these ,
Correct
Answer : - A ) 0 ,
8
) Octane no. of iso - octane is . . . . . . . . . . . . . . ,
A ) 0 , B ) 100 ,
C ) 137 , D
) None of these ,
Correct
Answer : - B ) 100 ,
9 )
∆ H
neutralization is defined as
energy released with the formation of 1mole of water . Enthalpy changes of
neutralization is always . . . . . . . . . . . . . . ,
A ) Negative , B
) Positive ,
C ) Zero or neutral , D )
None of these ,
Correct
Answer : - A ) Negative ,
10
) According to le – chatellier principle
, adding heat to a solid and liquid , equilibrium will cause the amount of
solid to . . . . . . . . . . . . . . . . . ,
A ) Increase , B ) Decrease
,
C ) remain same , D ) None of these ,
Correct
Answer : - B ) Decrease ,
Because
more liquid is formed by increase of temperature .
Now go to online quiz section and check your preparation by this link : -
