In alkaline medium. \(\mathrm{MnO}_4^{-}\)oxidises \(\mathrm{I}^{-}\)to:

The products formed in the following reaction sequence are _______.

The increase of pressure on ice \(\rightleftharpoons\) water system at constant temperature will lead to

Number of electrons that Vanadium \((Z=23)\) has in p-orbitals is equal to \(......\)

\(5\, g\) of \(Na_2SO_4\) was dissolved in \(x\,g\) of \(H_2O\). The change in freezing point was found to be \(3.82\,^oC\). lf \(Na_2SO_4\) is \(81.5\%\) ionised, the value of \(x\) (\(K_f\) for water \(= 1.86\,^oC\, kg\, mol^{-1}\)) is approximately .............. \(\mathrm{g}\) (molar mass of \(S = 32\, g\, mol^{-1}\) and that of \(Na = 23\, g\, mol^{-1}\))

The incorrect statement from the following with respect to carbohydrates is:

Consider the following reactions. From these reactions which reaction will give carboxylic acid
as a major product ?
(A) \(\mathrm{R}-\mathrm{C} \equiv \mathrm{N} \xrightarrow[\text { mild condition }]{\text { (i) } \mathrm{H}^{+} / \mathrm{H}_2 \mathrm{O}}\)
(B) \(\mathrm{R}-\mathrm{MgX} \xrightarrow[\text { (ii) } \mathrm{H}_3 \mathrm{O}^{+}]{\text {(i) } \mathrm{CO}_2}\)
(C) \(\mathrm{R}-\mathrm{C} \equiv \mathrm{N} \xrightarrow[\text { (ii) } \mathrm{H}_3 \mathrm{O}^{+}]{\text {(i) } \mathrm{SnCl}_2 / \mathrm{HCl}}\)
(D) \(\mathrm{R} \cdot \mathrm{CH}_2 \cdot \mathrm{OH} \xrightarrow{\mathrm{PCC}}\)
(E)

Choose the correct answer from the options given below:

A block of mass 25 kg is pulled along a horizontal surface by a force at an angle \(45^{\circ}\) with the horizontal. The friction coefficient between the block and the surface is 0.25. The displacement of 5 m of the block is:

Given below are two statements:
Statement I: The halogen that makes longest bond with hydrogen in HX, has the smallest covalent radius in its group.
Statement II: A group 15 element's hydride \(EH_{3}\) has the lowest boiling point among corresponding hydrides of other group 15 elements. The maximum covalency of that element E is 4.
In the light of the above statements, choose the correct answer from the options given below.

The correct order of total number of atoms present in
(A) \(2\) moles of cyclohexane
(B) \(684\) g of sucrose
(C) \(90.8\) L of dihydrogen at STP
is:

The pH of a 0.01 M weak acid \(\mathrm{HX}\left(\mathrm{K}_{\mathrm{a}}=4 \times 10^{-10}\right)\) is found to be 5. Now the acid solution is diluted with excess of water so that the pH of the solution changes to 6. The new concentration of the diluted weak acid is given as \(x \times 10^{-4} \mathrm{M}\). The value of x is ________ (nearest integer)

If an iron \((III)\) complex with the formula \(\left[\mathrm{Fe}\left(\mathrm{NH}_3\right)_{\mathrm{X}}(\mathrm{CN})_{\mathrm{Y}}\right]^{-}\)has no electron in its \(\mathrm{e}_{\mathrm{g}}\) orbital, then the value of \(x+y\) is _______.

Amongst \(FeCl _{3} \cdot 3 H _{2} O , \quad K _{3}\left[ Fe ( CN )_{6}\right]\) and \(\left[ Co \left( NH _{3}\right)_{6}\right] Cl _{3}\), the spin-only magnetic moment value of the inner-orbital complex that absorbs light at shortest wavelength is \(B.M.\,......\) [nearest integer]