Match the interhalogen compounds of column I
with the geometry in column II and assign the
correct code.
Column I Column II
(a ) XX′ (i) T - shape
(b) XX′3 (ii) Pentagonal bipyramidal
(c) XX′5 (iii) Linear
(d) XX′7 (iv) Square - pyramidal
(v) Tetrahedral
Code :
(a ) (b) (c) (d)
(1) (iv) (iii) (ii) (i)
(2) (iii) (iv) (i) (ii)
(3) (iii) (i) (iv) (ii)
(4) (v) (iv) (iii) (ii)

Mixture of chloroxylenol and terpineol acts as :
(1) antibiotic
(2) analgesic
(3) antiseptic
(4) antipyretic

It is because of inability of ``ns^2`` electrons
of the valence shell to participate in bonding that :
(1) ``Sn^{4+}`` is reducing while ``Pb^{4+}`` is oxidising.
(2)``Sn^{2+}`` is reducing while ``Pb^{4+}`` is oxidising.
(3) ``Sn^{2+}`` is oxidising while ``Pb^{4+}`` is reducing.
(4) ``Sn^{2+}`` and ``Pb^{2+}`` are both oxidising and reducing.

Extraction of gold and silver involves
leaching with ``CN^-`` ion. Silver is later recovered by :
(1) displacement with Zn
(2) liquation
(3) distillation
(4) zone refining

A 20 litre container at 400 K contains ``CO_2``(g)
at pressure 0.4 atm and an excess of SrO (neglect the
volume of solid SrO). The volume of the container is now
decreased by moving the movable piston fitted in the
container. The maximum volume of the container, when
pressure of ``CO_2`` attains its maximum value, will be :
(Given that : ``SrCO_3``(s) ``\xrightleftharpoons{K}`` SrO (s) + ``CO_2`` ( g),
``K_p`` = 1.6 atm)
(1) 2 litre
(2) 5 litre
(3) 10 litre
(4) 4 litre

Which is the incorrect statement ?
(1) Frenkel defect is favoured in those ionic compounds
in which sizes of cation and anions are almost equal
(2) FeO0.98 has non stoichiometric metal deficiency defect
(3) Density decreases in case of crystals with Schottky's defect
(4) NaCl(s) is insulator, silicon is semiconductor, silver
is conductor, quartz is piezo electric crystal

Which of the following is dependent on temperature ?
(1) Weight percentage
(2) Molality
(3) Molarity
(4) Mole fraction

The correct order of the stoichiometries of AgCl
formed when AgNO3 in excess is treated with the complexes :
``CoCl_3.6NH_3, CoCl_3.5NH_3, CoCl_3.4NH_3`` respectively is -
(1) 2AgCl, 3AgCl, 1AgCl
(2) 1AgCl, 3AgCl, 2AgCl
(3) 3AgCl, 1AgCl, 2AgCl
(4) 3AgCl, 2AgCl, 1AgCl

An example of a sigma bonded organometallic compound is -
(1) Cobaltocene
(2) Ruthenocene
(3) Grignard's reagent
(4) Ferrocene

Which one is the wrong statement ?
(1) The energy of 2s orbital is less than the energy
of 2p orbital in case of Hydrogen like atoms
(2) de-Broglie's wavelength is given by λ = ``\frac {h}{mv}``
where m = mass of the particle, v = group velocity of the
particle.
(3) The uncertainty principle is ΔE X Δt ``\geq `` ``\frac{h} {4\pi}``
(4) Half filled and fully filled orbitals have greater
stability due to greater exchange energy, greater
symmetry and more balanced arrangement

Which one is the most acidic compound ?
(1)
(2)
(3)
(4)

A first order reaction has a specific reaction rate
of ``10^{-2} sec^{-1}. How much time will it take for
20 g of the reactant to reduce to 5g ?
(1) 693.0 sec
(2) 238.6 sec
(3) 138.6 sec
(4) 346.5 sec

Consider the reactions :

Identify A, X, Y and Z
(1) A-Ethanol, X-Acetaldehyde, Y-Butanone Z-Hydrazone
(2) A-Methoxymethane, X-Ethanoic acid, Y-Acetate ion, Z-Hydrazine
(3) A-Methoxymethane, X-Ethanol, Y-Ethanoic acid, Z-Semicarbazide
(4) A-Ethanal, X-Ethanol, Y-But-2-enal., Z-Semicarbazone

Machanism of a hypothetical reaction ``\ce X2+ Y2`` → 2XY is given below.
( i) ``X_ 2`` → X + X (fast)
(ii) X + ``Y_2`` ``\rightleftharpoons`` XY + Y (slow)
(iii) X + Y → XY (fast)
The overall order of the reaction will be -
(1) 1.5
(2) 1
(3) 2
(4) 0

Predict the correct intermediate and product in the
following reaction :

(1)
(2)
(3)
(4)