Which one is a wrong statement ?
(1) Total orbital angular momentum of electron in
's' orbital is equal to zero
(2) An orbital is designated by three quantum
numbers while an electron in an atom is
designated by four quantum numbers.
(3) The electronic configuration of N atom is

(4) The value of m for ``dz^2`` is zero

Consider the following species:
``CN^+, CN^-, NO and CN``
Which one of these will have the highest bond order?
(1)`` NO ``
(2)`` CN^-``
(3) ``CN^+ ``
(4) CN

Which of the following statements is not true for
halogens ?
(1) All form monobasic oxyacids.
(2) All are oxidizing agents.
(3) All but fluorine show positive oxidation states.
(4) Chlorine has the highest electron-gain enthalpy.

Which one of the following elements is unable to
form ``MF_6^{3-}``?
(1) Ga (2) AI (3) B (4) In

In the structure of ``ClF_3``, the number of lone pairs
of electrons on central atom 'Cl' is
(1) one
(2) two
(3) four
(4) three

Considering Ellingham diagram, which of the
following metals can be used to reduce alumina ?
(1) Fe
(2) Zn
(3) Mg
(4) Cu

The correct order of atomic radii in group 13
elements is
(1) B < Al < In < Ga < Tl
(2) B < Al < Ga < In < Tl
(3) B < Ga < Al < Tl < In
(4) B < Ga < Al < In < Tl

The correct order of N-compounds in its decreasing
order of oxidation states is
``\ce (1) HNO3, NO, N2, NH4Cl``
``\ce (2) HNO3, NO, NH4Cl, N2``
``\ce (3) HNO3, NH4Cl, NO, N2``
``\ce (4) NH4Cl, N2, NO, HNO3``

On which of the following properties does
coagulating power of an ion depend ?
(1) The magnitude of the charge on the alone
(2) Size of the ion alone
(3) Both magnitude and sign of the charge the ion
(4) The sign of charge on the ion alone

Following solutions were prepared by mixing
different volumes of NaOH and HCl of different
concentrations :
a. 60mL ``\frac{M}{10}``HCl +
40mL ``\frac{M}{10}`` NaOH
b. 55mL ``\frac{M}{10}``HCl +
45mL ``\frac{M}{10}`` NaOH
c. 75mL ``\frac{M}{5}``HCl +
25mL ``\frac{M}{5}`` NaOH
d. 100mL ``\frac{M}{10}``HCl +
100mL ``\frac{M}{10}`` NaOH
pH of which one of them will be equal to 1 ?
(1) b
(2) a
(3) d
(4) c

The solubility of ``BaSO_4`` in water
2.42 × 103 ``gL^{-1}``at 298 K. The value
of solubility product (``K_{sp}``) will be
(Given molar mass of BaSO4 = 233 g ``mol ^{-1}``
(1) ``1.08 × 10^{-10} mol^2 L^{-2}``
(2)`` 1.08 × 10^{-12} mol^2 L^{-2}``
(3)`` 1.08 × 10^{-14} mol^2 L^{-2}``
(4)`` 1.08 × 10^{-8} mol^2 L^{-2}``

Given van der Waals constant for ``\ce NH3, H2`` and ``CO_2``
are respectively 4.17, 0.244, 1.36 and 3.59, which
one of the following gases is most easily liquefied?
(1) ``\ce NH3``
(2) ``H_2 ``
(3)`` O_2 ``
(4)`` CO_2``

The compound A on treatment with Na gives B, and
with ``PCl_5 ``gives C. B and C react together to give
diethyl ether. A, B and C are in the order
(1) ``\ce C2H5OH, C2H6, C2H5Cl``
(2) ``\ce C2H5OH, C2H5Cl, C2H5ONa``
(3) ``\ce C2H5Cl, C2H6, C2H5OH``
(4) ``\ce C2H5OH, C2H5ONa, C2H5Cl``

Hydrocarbon (A) reacts with bromine by substitution
to form an alkyl bromide which by Wurtz reaction
is converted to gaseous hydrocarbon containing less
than four carbon atoms. (A) is
(1) CH ``\equiv `` CH
(2)`` CH_2=CH_2``
(3)`` CH_3-CH_3 ``
(4) ``CH_4``

The compound ``\ce C7H8 ``undergoes the following
reactions :
``\ce{$C7H8$ ->[\ce{ \frac {3Cl_2}{\lambda}}] $A$} ``
``\ce{$$ ->[\ce{\frac {Br_2}{Fe}}] $B$} \\``
``\ce{$$ ->[\ce{\frac {Zn}{HCl}}] $C$} \\``
The product 'C' is
(1) m-bromotoluene
(2) o-bromotoluene
(3) 3-bromo-2,4,6-trichlorotoluene
(4) p-bromotoluene