Which of the following statements is not correct about cell potential?

What is the first step in acid catalyzed dehydration of alcohol?

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One of the notable features of the transition element is the great variety of oxidation states it may show in its compounds. The elements which give the greatest number of oxidation states occur in or near the middle of the series. Manganese, for example exhibits all the oxidation states from 2 to +7. The lesser number of oxidation states at the extreme ends is either due to losing or sharing of few electrons (Se, Ti) or too many d electrons of higher valence. Early in the first series scandium (II) is virtually unknown and titanium (IV) which is more stable than Ti (III) or Ti (II). On the other end, the only oxidation state of zinc is \(+ 2\).
Ambidentate ligand among the following is
A. NCS
B. \(C _2 O _4^{2-}\)
C. SCN
D. \(H _2 NCH _2 CH _2 NH _2\)
E. \(NO _2\)
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The quantity of charge required to obtain \(2\text{ mol}\) of \(\text{Mn}^{2+}\) from \(\text{MnO}_4^{-}\) is:

The correct expression of the rate of the reaction according to the collision theory is:

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The noble gases have closed shell electronic configuration and are monatomic gases under normal conditions. The low boiling points of lighter noble gases are due to the weak dispersion forces between the atoms and the absence of other inter atomic interaction. The direct reaction of xenon with fluorine leads to a series of compounds with oxidation numbers \(+2, +4\) and \(+6\).
\(\text{XeF}_4\) reacts violently with water to give \(\text{XeO}_3\). The compound of Xenon exhibit stereoisomerism and their geometries can be deduced considering the total number of electrons in the valence shell.
Match List - I with List – II.

List - I	List - II
A. Its partial hydrolysis does not change the oxidation state of the central atom	I. He
B. It is used in modern diving apparatus	II. \(\text{XeF}_6\)
C. It is used to provide inert atmosphere for filling electrical bulbs	III. \(\text{XeF}_4\)
D. Its central atom is in \(\text{sp}^3\text{d}^2\) hybridisation state	IV. Ar

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Amylose and amylopectin are the two components of starch. Which of the following statement is true?

Area of the region bounded by \(y=3 x, x\)-axis, and \(x=-1\) is :

Which isomerism is shown by the following pairs ?
\(CH_3CH_2CH_2OH\) and \(CH_3CH_2OCH_3\)

A particle moves along the curve \(6 y=x^3+2\). The point(s) on the curve at which the \(y\)-coordinate is changing 8 times as fast as the \(x\)-coordinate are:

The electric field intensity at the mid point of a dipole with charge \( \pm q \) and dipole length \( 2a \) is:

The aqueous solutions of \(ZnSO _4, AgNO _3, FeCl _3\) and \(WCl _6\) are electrolysed for 2 hours using a current of 5 amperes. The decreasing order of mass deposited of the following metals at the cathode will be:
(A) Zn
(B) Ag
(C) Fe
(D) W
(Atomic masses:\(Fe =56 g mol ^{-1}, Zn =65 g mol ^{-1}\),\(\left.Ag =108 g mol ^{-1}, W=184 g mol ^{-1}\right)\)
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Aldehydes, carboxylic acids and ketones are widespread in the animal and plant kingdoms. They play a pivotal role in various biochemical processes of life. Their presence in nature adds fragrance and flavor. These compounds are widely used in food products, pharmaceuticals, paints, resins and other important product industries. These compounds are prepared by various laboratory methods, which mainly include oxidation, formylation, acylation and reduction. Due to the polar nature of the carbonyl group in aldehydes and ketones, they can exhibit different reactions like nucleophilic addition. They do exhibit redox and various condensation reactions which lead to the formation of various important compounds. On the other hand, the carboxylic acids are mainly prepared by oxidation and hydrolysis of different compounds. The carboxylic acid consists of a carbonyl group and the hydroxy group (attached to the carbonyl carbon atom). This makes it possible for the carboxylic acid to participate in various chemical reactions which involve cleavage of the C-OH bond and the O-H bond along with the reactions involving the complete - COOH group.
The IUPAC name of following compound is \(OHC-C_6H_4-CHO-p\)