The thermal decomposition of HI on gold surface is an example of

Which one of the following salts would have the same value of the van't Hoff factor as that of \(\text{Al(NO}_3\text{)}_3\)?

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Lyophobic sols like those of metals (Au, Ag, etc) are unstable and are easily precipitated by addition of electrolytes. However, it is observed that the addition of certain lyophilic colloids like gums, soaps, gelatine, etc. to lyophobic colloids (like a metal sol) render lyophobic colloids difficult to coagulate by the addition of electrolytes. The process is known as 'protection' and the lyophilic colloids are termed as Protective colloids. It is believed that the protective action of the lyophilic colloids is due to the covering up of the particles of the lyophobic colloid by those of the lyophilic colloid. smaller the gold number of a protective colloid, the greater is its protective action. purification of colloidal solution ?
Evidently, Which of the following methods cannot be used for

What is the source of nitrogen in Gabriel synthesis of primary aliphatic amines?

What is the decreasing order of field strength of given ligands?
(A) S^2-
(B) Ethylenediamine
(C) NCS^-
(D) CN^-
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Arrange the following compounds in increasing order of reactivity towards Nucleophilic Substitution Reaction
(A) Chlorobenzene
(B) 4- Nitrochlorobenzene
(C) 2,4 - Dinitrochlorobenzene
(D) 2,4,6-Trinitrochloronitrobenzene
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Choose the incorrect statement about ethylenediaminetetraacetate ion.

A point charge of 17.7 \( \mu C \) is located at the center of a cube of side 0.03 m. Find the electric flux through each face of the cube.

Equipotential surfaces at a great distance from a collection of charges whose total sum is not zero are approximately:

If \(A =\left(\begin{array}{cc}2 & 3 \\ 5 & -2\end{array}\right)\), be such that \(A ^{-1}=K A\), then the value of \(K\) is :

Hoffmann bromamide degradation method is used for preparation of

Which of the following statements is/ are correct
(A) For an ideal solution, the enthalpy and volume of mixing of pure components are zero.
(B) The inter-molecular attractive forces between A-A and B-B are greater than those between A-B for an ideal binary solution.
(C) The inter-molecular attractive forces between A-A and B-B are of the same order as those between A-B for an ideal binary solution
(D) For an ideal solution, the enthalpy and volume of mixing of pure components to form the solution are positive.
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Which of the following statement(s) is correct ?
(A). Keratin is an example of fibrous protein.
(B). Fibrous proteins are water-soluble, while globular proteins are water-insoluble.
(C). Polypeptide chains in fibrous proteins run parallel and are held together by hydrogen and disulphide bonds.
(D). Insulin and albumins are common examples of globular proteins.
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