Which of the following processes does not involve oxidation of iron
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(a) Decolourization of blue CuSO₄ solution by iron (b) Formation of Fe(CO)₅ from Fe (c) Lineration of H₂ from steam by […]
The number of d-electrons in Fe²⁺(Z=26) is not equal to the number of electrons in which one of the following
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(a) p-electrons in Cl(Z=17) (b) d-electrons in Fe(Z=26) (c) p-electrons in Ne(Z=10) […]
Nitrogen dioxide and sulphur dioxide have some properties in common.Which property is shown by one of these compounds, but not by the other
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(a) is a reducing agent (b) is soluble in […]
‘Metals are usually not found as nitrates in their ores”. Out of the following two (i) and (ii) reasons which is true for the above observation.(i)Metal nitrates are highly unstable.(ii)Metal nitrates are highly soluble in […]
When initial concentration of a reactant is doubled in a reaction, its half-life period is not affected.The order of the reaction is
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(a) First (b) Second (c) More than zero but less […]
The activation energy of a reaction can be determined from the slope of which of the following graphs
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(a) lnK/T vs.T (b) ln K vs.1/T (c) T/ln K vs.1/T (d) ln K […]
A device that converts energy of combustion of fules like hydrogen and methane,directly into electrical energy is known as:
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(a) Electrolytic cell (b) Dynamo (c) Ni-Cd cell (d) Fuel Cell
Correct Answer:
Fuel […]
Which one is not equal to zero for an ideal solution
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(a) ΔS(mix) (b) ΔV(mix) (c) ΔP = P(observed)-P(Raoult) (d) ΔH(mix)
Correct Answer:
ΔS(mix)
Explanation:
No explanation available. Be the first to […]
The boiling point of 0.2 mol kg⁻¹ solution of X in water is greater than equimolal solution of Y in water.Which one of the following statements is true in this case
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(a) […]
Which one of the following electrolytes has the same value of van’t Hoff’s factor(i) as that of the Al₂(SO₄)₃ (if all are 100% ionised)
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(a) K₃[Fe(CN)₆] (b) Al(NO₃)₃ (c) K₄[Fe(CN)₆] (d) K₂SO₄
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