The IUPAC name of the
compound is -
(1) 3-keto-2-methylhex-5-enal
(2) 3-keto-2-methylhex-4-enal
(3) 5-formylhex-2-en-3-one
(4) 5-methyl-4-oxohex-2en-5-al

In the electrochemical cell -
Zn|``ZnSO_4``(0.01M) || ``CuSO_4`` (1.0 M)| Cu,
the emf of this Daniel cell is ``E_1``. When the
concentration of ``ZnSO_4`` is changed to 1.0 M
and that of ``CuSO_4`` changed to 0.01M, the emf
changes to E2. From the followings, which
one is the relationship between E1 and E2 ?
Given, ``\frac {RT}{F}`` = 0.059) .
(1) E2 = 0 ≠ E1
(2) E1 = E2
(3) E1 < E2
(4) E1 > E2

A gas is allowed to expand in a well insulated
container against a constant external pressure of
2.5 atm from an initial volume of 2.50 L to a final
volume of 4.50 L. The change in internal energy ΔU
of the gas in joules will be -
(1) +505 J
(2) 1136.25 J
(3) - 500 J
(4) - 505 J

Correct increasing order for the wavelengths
of absorption in the visible region for the
complexes of ``Co^{3+} is -
(1) ``[Co(NH_3)_6]^{3+}, [Co(en)_3]^{3+}, [Co(H_2O)_6]^{3+}``
(2) ``[Co(en)_3]^{3+}, [Co(NH_3)_6]^{3+}, [Co(H_2O)_6]^{3+}``
(3) ``[Co(H_2O)_6]^{3+}, [Co(en)_3]^{3+}, [Co(NH_3)_6]^{3+}``
(4) ``[Co(H_2O)_6]^{3+}, [Co(NH_3)_6]^{3+}, [Co(en)_3]^{3+}``

The correct statement regarding electrophile is :
(1) Electrophile can be either neutral or positively
charged species and can form a bond by accepting a
pair of electrons from a nucleophile
(2) Electrophile is a negatively charged species
and can form a bond by accepting a pair of electrons
form a nucleophile
(3) Electrophile is a negatively charged species and
can form a bond by accepting a pair of electrons
from another electrophile
(4) Electrophiles are generally neutral species
and can form a bond by accepting a pair of electrons from a nucleophile

For a given reaction, ΔH = 35.5 kJ ``mol^{-1} and
ΔS = 83.6 ``JK^{-1} ``mol^{-1} . The reaction is spontaneous
at : (Assume that ΔH and ΔS do not vary with temperature)
(1) T > 298 K
(2) T < 425 K
(3) T > 425 K
(4) All temperatures

Which of the following pairs of compounds is
isoelectronic and isostructural ?
(1)`` IF_3, XeF_2``
(2) ``BeCl_2, XeF_2``
(3) ``TeI_2, XeF_2``
(4) ``IBr_2, XeF_2``

``HgCl_2`` and ``I_2`` both when dissolved in water containing ``I^-``
ions pair of species formed is :
(1) ``Hg_2I_2``, ``I^-``
(2)`` HgI_2``,`` I_3^-``
(3) ``HgI_2`` , ``I^-``
(4)``HgI_4^{2-}`` ,`` I_3^-``

Which one of the following statements is not correct ?
(1) Coenzymes increase the catalytic activity of enzyme
(2) Catalyst does not initiate and reaction
(3) The value of equilibrium constant is changed in the
presence of a catalyst in the reaction at equilibrium
(4) Enzymes catalyse mainly bio-chemical reaction.

Ionic mobility of which of the following alkali
metal ions is lowest when aqueous solutions of their
salts are put under an electric filed?
(1) Li
(2) Na
(3) K
(4) Rb

The element Z = 114 has been discovered recently.
It will belong to which of the following family/group
and electronic configuration ?
(1) Nitrogen family, [Rn] ``5f^{14}`` ``6d^{10}`` ``7s^2`` ``7p^6``
(2) Halogen family, [Rn] ``5f^{14}`` ``6d^{10}`` ``7s^2`` ``7p^5``
(3) Carbon family, [Rn] ``5f^{14}`` ``6d^{10}`` ``7s^2`` ``7p^2``
(4) Oxygen family, [Rn] ``5f^{14}`` ``6d^{10}`` ``7s^2`` ``7p^4``

Which one is the correct order of acidity ?
(1) CH3 - CH3 > CH2 = CH2 > CH3 - C ≡ CH > CH≡CH
(2) CH2 = CH2 > CH3 - CH = CH2 > CH3 - C ≡ CH > CH ≡ CH
(3) CH ≡ CH > CH3 - C ≡ CH > CH2 = CH2 > CH3 - CH3
(4) CH ≡ CH > CH2 = CH2 > CH3 - C ≡ CH > CH3 - CH3

If molality of the dilute solution is doubled,
the value of molal depression constant (``K_f``) will be
(1) unchanged
(2) doubled
(3) halved

The species, having bond angles of 120º is
(1) ``BCl_3``
(2) ``PH_3``
(3) ``CIF_3``
(4) ``NCl_3``

Which of the following reactions is appropriate
for converting acetamide to methanamine ?
(1) Gabriels phthalimide synthesis
(2) Carbylamine reaction
(3) Hoffmann hypobromamide reaction
(4) Stephens reaction