Match List-I with List-II

List-I	List-II
(A) Catalysts alter the rate of reaction	(I) cannot be fraction or zero
(B) Molecularity	(II) by lowering the activation energy
(C) Second half life of a first order reaction	(III) is the same as the first
(D) \(e^{-E_a / R T}\)	(IV) refers to the fraction of molecules with energy equal to or greater than activation energy

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The mass percentage of a component of a solution is defined as:

Which of the following will be having maximum magnetic moment?
\(( Fe =26, Mn =25, Co =27)\)

Which of the following reactions are given by Phenols?
(A) Nitration
(B) Halogenation
(C) Oxidation
(D) Acetylation
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Arrange the following alcohols in decreasing order of acidity:

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Which of the following process does not occur at the interface of phases?

Match List-I with List-II.

List-I	List-II
A. Reimer - Tiemann reaction	I. Benzene
B. Kolbe's reaction	II. Picric acid
C. Nitration of phenol with conc. \(HNO _3\)	III. Salicylic acid
D. Reaction of phenol with zinc dust	IV. Salicyaldehyde

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Read the given passage and answer the following questions:
Secondary treatment or biological treatment: The primary effluent is passed into large tanks where air is pumped into it. This allows vigorous growth of aerobic microbes. While growing, these microbes consume the major part of the organic matter in the effluent. This significantly change the BOD (biochemical oxygen demand) of the effluent. The effluent in then passed into a tank a small part of the sludge is pumped back into the aeration tank to serve as the inoculum. The remaining major part of the sludge is pumped into large tanks called sludge digesters. Here, other kinds of bacteria grow anaerobically in the sludge. The biogas produced can be used source of energy as it is inflammable. The effluent from the secondary treatment plant is generally released into natural water bodies like rivers and streams.
The greater the BOD of water

Choose the correct statement for the collision theory of chemical reactions

The angle of minimum deviation if the refracting angle of a prism is \(2θ\), and the refractive index of the material of the prism is \(\cot θ\) is:

If \(A\) is a square matrix of order 3 and \(\operatorname{det}(A)=1\). If \(B=2 A\) is another matrix, the value of \(\operatorname{det}(B)\) is:

Area lying in the first quadrant and bounded by the circle \(x^2+y^2=4\) and the lines x = 0 and x = 2 is:

An inductor of 500 mH is in series with a resistance and a variable capacitor connected to a source of frequency 0.4 kHz. The value of capacitance of the capacitor to get a maximum current will be