The main cause of basicity of oxoacids of phosphorous is :

Arrange the following steps in the correct sequence to carry out reverse osmosis
(A) Two solutions having different concentrations of the same solute are taken.
(B) Very high external pressure is applied on the high concentration side.
(C) A semipermeable membrane is inserted between the two solutions.
(D) Solvent flows from the high concentration side to the low concentration one.
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Which of the statements are true?
(A) The coagulation of lyophobic sols can be done by electrophoresis
(B) Principal emulsifying agent for W/O emulsions are proteins, soaps, gums etc.
(C) Alum is used for cleaning muddy water
(D) Gelatin is added to ice cream to act as emulsifier
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Read the passage carefully and answer the questions.
Electrochemistry is the study involving two types of processes. One type involves the production of electricity from the energy released during a spontaneous chemical reaction. Galvanic cells like Daniel cells are used to produce electricity from the redox reaction. Nernst equation of a galvanic cell gives the relation between the standard cell potential and the concentration of the species involved in the redox reaction. The second type of study involves the cells in which electrical energy is used to bring about the chemical reactions in a non-spontaneous process. The conductance of electrolytic solution depends on many factors including the nature of the electrolyte and the dimensions of the electrolytic cell.
What is the SI unit of conductivity?

When electric current is passed through acidified water, 448 mL of hydrogen gas at STP is collected at the cathode in 965 seconds. The current passed in amperes is :

By reaction of compound \(\text{Ph} - \text{O} - \text{CO} - \text{Ph}\) with NaOH solution yields
A. Phenol
B. Benzaldehyde
C. Benzoic acid
D. Benzophenone
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When we consider an inert electrode in a cell; which statement is not suitable for it?
(A) It provides surface either for oxidation or for reduction reaction.
(B) It does not participate in the cell reaction.
(C) It provides surface for redox reaction.
(D) It provides surface for conduction of electrons.
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Copper can be extracted from:
(A) Cryolite
(B) Malachite
(C) Calamine
(D) Copper glance
(E) Cuprite
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Bases of RNA are -

Consider \(Z = x + y\) subject to the constraints \(2x + y \le 3, 2x - y \ge 0, x \ge 0, y \ge 0\). The maximum value of Z is:

\(\int_0^2|x-1| d x=\)

A part of an infinitely long current carrying wire is bent into a circular shape as shown in the diagram. The magnetic field at the centre of the circle is

Match List-l with List-II

List-l (Type of solution)	List-II (Example)
(A) solid in solid	(I) Camphor in \(N_2\)
(B) solid in gas	(II) Cu in Au
(C) gas in solid	(III) Hg in Na
(D) liquid in solid	(IV) \(H_2\) in Pd

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