Coagulating power of an ion for a colloidal solution depends on :

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\(KMnO _4\) is prepared by the fusion of \(MnO _2\) with an alkali metal hydroxide and an oxidizing agent like \(KNO _3\) to give a dark-green manganate ion which disproportionate to give permanganate as follows.
\(\begin{array}{l}2 MnO _2+4 KOH + O _2 \rightarrow 2 K_2 MnO _4+2 H _2 O \\ 3 K_2 MnO _4+4 H ^{+} \rightarrow 2 KMnO _4+ MnO _2+2 H _2 O \end{array}\)
On heating \(K _2 MnO _4\) decomposes at 513 K to give \(K _2 MnO _4\). Permanganate ion is tetrahedral and diamagnetic
Acidified \(KMnO _4\) acts a strong oxidizing agent which oxidizes oxalic acid, ferrous ions, nitrite ion and iodides.
Reaction of iodide ion \(\left( I ^{-}\right)\)with \(KMnO _4\) will.....

The conversion of molecules \(A\) to \(B\) follows second order kinetics. If the concentration of \(A\) is increased to four times, how will the rate of formation of \(B\) be affected?

Match List - I with List - II.

List - I (Process)	List - II (Metal)
A. Electrolytic reduction	I. Iron
B. Bessemerization	II. Zinc
C. Smelting	III. Aluminium
D. Reduction from oxide	IV. Copper

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Arrange the following alcohols in increasing order of their boiling points.
(A) Propan-1-ol
(B) Butan-2-ol
(C) Butan-1-ol
(D) Pentan-1-ol
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Arrange the following alkyl halides in increasing order of boiling points
(A) 1-Iodobutane
(B) 1-Bromobutane
(C) 1-Chlorobutane
(D) Butane
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Ammonia is manufactured by:
\(N _2(g)+3 H _2(g) \rightleftharpoons 2 NH _3(g) \quad \Delta H=-46.1 kJ / mol\)
The various steps involved are:
(A) Condensation of mixture of gases
(B) Passing the gaseous mixture over catalyst
(C) Compression of the mixture of gases
(D) Recirculation of the gaseous mixture
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Which of the following factors can influence Hardy-Weinberg equilibrium?

A solenoid of length 30 cm and 3000 turns carries a current of 10 A. The value of the magnetic field (\( \vec{B} \)) at the centre of solenoid is: (Given \( \mu_0 = 4\pi \times 10^{-7} \text{ Wb/A-m} \))

Which of the following is NOT a sexually transmitted disease?

The ratio of total energy of an electron in 3rd orbit to that in 5th orbit in a hydrogen atom is:

Which of the following matrices is not invertible?

What is the approximate earth's dipole moment, if the earth's magnetic field at the Equator is approximately 0.5 G and diameter is \( 15.0 \times 10^6 \text{ m} \)?