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What is the standard emf of the following cell?
\[\ce{Ni_{(s)} | Ni^{2+}_{( aq)} || Au^{3+}_{( aq)} | Au_{(s)}}\]
if \[\ce{E^0_{Ni}}\] = −0.25 V, \[\ce{E^0_{Au}}\] = 1.50 V.
Concept: undefined >> undefined
Which among the following is correct when energy of activation, Ea of the catalyzed reaction decreases at constant temperature and for same concentration?
Concept: undefined >> undefined
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What is the highest oxidation state exhibited by actinoids?
Concept: undefined >> undefined
Which cation from following does NOT form colourless compound?
(Atomic number - Cu = 29, Ti = 22, Zn = 30, Sc = 21)
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The complex ions [Co(H2O)5(ONO)]2+ and [Co(H2O)5NO2]2+ are ____________.
Concept: undefined >> undefined
1 mol of CO2 contains ____________.
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Which one of the following methods is NOT used for the synthesis of amines?
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\[\ce{Dimethylamine + Benzoyl chloride ->[Pyridine] ?}\]
Product formed is:
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The formula of two complexes X and Y of chromium are given below:
\[\ce{\underset{(X)}{[Cr(H2O)6]Cl3}}\] and \[\ce{\underset{(Y)}{[Cr(H2O)5Cl]Cl2.H2O}}\]
X and Y are examples of ____________ isomers.
Concept: undefined >> undefined
Which of the following is INCORRECT?
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Which of the following has zero dipole moment?
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Which of the following is INCORRECT expression in terms of vapour pressure of pure solvent `("P"_1^0)` and that of solution (P)?
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When C2H5Br is treated with excess of alc. NH3, the major product obtained is ____________.
Concept: undefined >> undefined
What is the ΔG0 for the following reaction?
\[\ce{Al_{(s)} + Fe^{3+}_{( aq)} -> Al^{3+}_{( aq)} + Fe_{(s)}}\]; \[\ce{E^0_{cell}}\] = +2.43
Concept: undefined >> undefined
The vapour pressure of water at 20°C is 17 mm Hg. The vapour pressure of solution containing 2.8 g urea in 50 g of water is ____________.
Concept: undefined >> undefined
The SN2 reaction of a compound containing an asymmetric carbon atom always gives ____________.
Concept: undefined >> undefined
For the following cell, standard potential of copper electrode is 0.337 V and standard cell potential is 0.463 V.
\[\ce{Cu | Cu^{2+} (1 M) || Ag^+ (1 M) Ag}\]
What is the standard potential of silver electrode?
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Atoms of elements A and B crystallize in hep lattice to form a molecule. Element A occupies 2/3 of tetrahedral voids, the formula of molecule is ______.
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Copper crystallizes as face centered cubic lattice, with edge length of unit cell 361 pm. Calculate the radius of copper atom.
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Which of the following changes will cause increase in vapour pressure of 1 molal aqueous KI solution at same temperature?
Concept: undefined >> undefined
