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A sample of NaClO$$_3$$ is converted by heat to NaCl with a loss of 0.16 g of oxygen. The residue is dissolved in water and precipitated as AgCl. The mass of AgCl (in g) obtained will be: (Given: Molar mass of AgCl = 143.5 g mol$$^{-1}$$)
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Ejection of the photoelectron from metal in the photoelectric effect experiment can be stopped by applying 0.5 V when the radiation of 250 nm is used. The work function of the metal is:
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For Na$$^+$$, Mg$$^{2+}$$, F$$^-$$ and O$$^{2-}$$; the correct order of increasing ionic radii is:
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In the molecular orbital diagram for the molecular ion, N$$_2^+$$, the number of electrons in the $$\sigma_{2p}$$ molecular orbital is:
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Identify the pair in which the geometry of the species is T-shape and square pyramidal, respectively:
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In graphite and diamond, the percentage of p characters of the hybrid orbitals in hybridization are respectively:
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The decreasing order of bond angles in BF$$_3$$, NH$$_3$$, PF$$_3$$ and I$$_3^-$$ is:
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For which of the following reactions, $$\Delta H$$ is equal to $$\Delta U$$?
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An ideal gas undergoes a cyclic process as shown in Figure.
$$\Delta U_{BC} = -5$$ kJ mol$$^{-1}$$, $$q_{AB} = 2$$ kJ mol$$^{-1}$$
$$W_{AB} = -5$$ kJ mol$$^{-1}$$, $$W_{CA} = 3$$ kJ mol$$^{-1}$$
Heat absorbed by the system during process CA is:
In which of the following reactions, an increase in the volume of the container will favour the formation of products?
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Which of the following is a Lewis acid?
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The minimum volume of water required to dissolve 0.1 g lead (II) chloride to get a saturated solution ($$K_{SP}$$ of PbCl$$_2$$ = $$3.2 \times 10^{-8}$$; atomic mass of Pb = 207 u) is:
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A white sodium salt dissolves readily in water to give a solution which is neutral to litmus. When silver nitrate solution is added to the aforementioned solution, a white precipitate is obtained which does not dissolve in dil. nitric acid. The anion is:
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The correct match between items of List-I and List-II is:
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The IUPAC name of the following compound is:
Which of the following will most readily give the dehydrohalogenation product?
The major product of the following reaction is:
The increasing order of nitration of the following compounds is:
(A) Aniline, (B) Chlorobenzene, (C) Anisole, (D) Toluene
Which of the following arrangements shows the schematic alignment of magnetic moments of antiferromagnetic substance?
When an electric current is passes through acidified water, 112 mL of hydrogen gas at N.T.P. was collected at the cathode in 965 seconds. The current passed, in ampere, is:
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N$$_2$$O$$_5$$ decomposes to NO$$_2$$ and O$$_2$$ and follows first order kinetics. After 50 minutes, the pressure inside the vessel increases from 50 mm Hg to 87.5 mm Hg. The pressure of the gaseous mixture after 100 minutes at constant temperature will be:
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Which of the following statements about colloids is false?
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Xenon hexafluoride on partial hydrolysis produces compounds 'X' and 'Y'. Compounds 'X' and 'Y' and the oxidation state of Xe are respectively:
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The correct combination is:
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The main reduction product of the following compound with NaBH$$_4$$ in methanol is:
The reagent(s) required for the following conversion are:
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The copolymer formed by addition polymerization of styrene and acrylonitrile in the presence of peroxide is:
Which of the following will not exist in zwitter ionic form at pH = 7?
Which of the following is the correct structure of adenosine?
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