The role of a catalyst is to change :

Match List-I with List-II

List-I ( Common name)	List-II ( IUPAC name)
(A) Vinyl Chloride	(I) 1-Chloro-2-methylbenzene
(B) Chloroform	(II) Dichloromethane
(C) Methylene chloride	(III) Trichloromethane
(D) o-Chlorotoluene	(IV) Chloroethene

Choose the correct answer from the options given below:

Which is the correct IUPAC name of the compound \(CH _3 CH = CHC ( Br )\left( CH _3\right)_2 ?\)

The correct order of decreasing \(pK _{ a }\) values of the following compounds

Arrange the following haloalkanes in decreasing order of boiling point - Chloromethane, Bromomethane, dibromomethane, bromoform

Read the passage carefully and answer the questions
Alcohols and phenols are formed when a hydrogen atom in a hydrocarbon, aliphatic and aromatic respectively is replaced by -OH group. These are further classified on the basis of number of hydroxy groups and according to the hybridization of the carbon atom \(sp ^2\) or \(sp ^3\) to which the -OH group is attached. They find applications in industry as well as in day-to-day life. One of the most commercially obtained alcohol also known as wood spirit is obtained by destructive distillation of wood. Both alcohols and phenols are acidic in nature. The acidity of alcohols and phenols vary according to the nature of substituent(s) attached to them. Alcohols and phenols react with carboxylic acids, acid chlorides and acid anhydrides to form esters. Introduction of acetyl group in alcohols and phenols is called acetylation. Phenol undergo electrophilic aromatic substitution reaction because the -OH activates the benzene ring. It undergoes nitration, halogenation and sulphonation reactions.
Which of the following compound lacks a phenolic group?

Which of the following complexes are square planar?
(A) \(\left[ Ni ( CN )_4\right]^{2-}\)
(B) \(\left[ NiCl _4\right]^{2-}\)
(C) \(\left[ PtCl _4\right]^{2-}\)
(D) \(\left[ PdCl _4\right]^{2-}\)
Choose the correct answer from the options given below

Read the passage carefully and answer the Questions In the formation of coordination complexes, if the inner \(d\) orbital \((n-1) d\) is used in hybridisation, the complex, is called an inner orbital or low spin or spin paired complex. And if it uses outer \(d\) orbital ( \(n d\) ) in hybridisation (like \(s p^3 d^2\) ), it is called outer orbital or high spin or spin free complex. The degeneracy of the \(d\) orbitals has been removed due to ligand electron-metal electron repulsions in the complex. This splitting of the degenerate levels due to the presence of ligands in a definite geometry is termed as crystal field splitting. For coordination complexes, the magnetic moment is determined by the number of unpaired electrons and is calculated by using the 'spin-only' formula, \(\mu=\sqrt{n(n+2)}\) where \(n\) is the number of unpaired electrons and \(\mu\) is the magnetic moment in units of Bohr magneton (BM). The coordination compounds are of great importance. These compounds are widely present in the mineral, plant and animal worlds and are known to play many important functions in the area of analytical chemistry, metallurgy, biological systems, industry and medicine.
\(\left[ Co \left( NH _3\right)_6\right]^{3+}\) and \(\left[ Ni \left( NH _3\right)_6\right]^{2+}\) respectively are

If \(A=\left[\begin{array}{cc}x+4 & 2 \\ 3 & 1\end{array}\right] B =\left[\begin{array}{cc}x & 2 x-1 \\ 2 & 5\end{array}\right]\) and \(|A B|=12\), then the value(s) of \(x\) is/are :

Which of the following statement is not correct for Butan-2-ol?

A telescope has an objective lens of 0.1 m diameter and is situated at a distance of 500 m from two objects. What will be the minimum distance between these two objects which can be resolved by the telescope? The mean wavelength of light is 600 nm.

The corner points of feasible region determined by the following systems of linear inequalities :
\(2 x+y \leq 10, x+3 y \leq 15, x \geq 0, y 0\) are \((0,0),(5,0),(3,4)\) and \((0,5)\)
Let \(z=p x+q y\), when \(p, q>0\) then the relation between \(p\) and \(q\), so that maximum of \(z\) occurs at both points \((3,4)\) and \((0,5)\) is:

If the speed of rotation of the armature of a generator is increased, how would it effect (i) The maximum emf produced (ii) The frequency of the emf?