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
A given metal crystallizes out with a cubic structure having edge length of 361 pm.If there are four metal atoms in one unit cell ,what is the radius of one atom
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(a) […]
In Duma’s method for estimation of nitrogen, 0.25g of an organic compound gave 40 mL of nitrogen collected at 300K temperature and 725 mm pressure.If the aqueous tension at 300 K is 25 mm, the […]
The function of ”Sodium pump” is a biological process operating in each and every cell of all animals.Which of the following biologically important ions is also a consituent of this pump:
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(a) […]
Solubility of the alkaline earth’s metal sulphates in water decreases in the sequence
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(a) Ca > Sr > Ba > Mg (b) Sr > Ca > Mg > Ba (c) Ba > […]
If the value of an equilibrium constant for a particular reaction is 1.6 ˣ 10¹², then at equilibrium the system will contains
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(a) mostly reactants (b) mostly products (c) similar amounts of […]
The K(sp) of Ag₂CrO₄, AgCl,AgBr and AgI are respectively. 1.1 ˣ 10⁻¹²,1.8 ˣ 10⁻¹⁰, 5.0 ˣ 10⁻¹³,8.3 ˣ 10⁻¹⁷.Which one of the following salts will precipitate last if AgNO₃ solution is added to the solution […]
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