A reaction at \(1\,bar\) is non-spontaneous at low temperature but becomes spontaneous at high temperature. Identify the correct statement about the reaction among the following

The correct combination is

Galvanization is applying a coating of :

The reaction of zinc with dilute and concentrated nitric acid, respectively, produces :

The first transition series metal ' M ' has the highest enthalpy of atomisation in its series. One of its aquated ion \(\left(\mathrm{M}^{\mathrm{n} \dagger}\right)\) exists in green colour. The nature of the oxide formed by the above \(\mathrm{M}^{\mathrm{n}-}\) ion is _______.

Ammonolysis of Alkyl halides followed by the treatment with \(NaOH\) solution can be used to prepare primary, secondary and tertiary amines. The purpose of \(NaOH\) in the reaction is :

Find out the statements which are not true.
A. Resonating structure with more number of covalent bonds and lesser charge separation are more stable.
B. In electromeric effect, an unsaturated system shows + E effect with nucleophile and - E effect with electrophile.
C. Inductive effect is responsible for high melting point, boiling point and dipole moment of polar compounds.
D. The greater the number of alkyl groups attached to the doubly bonded carbon atoms, higher is the heat of hydrogenation.
E. Stability of carbanion increases with the increase in s-character of the carbon carrying the negative charge.
Choose the correct answer from the options given below.

The resistance of a conductivity cell with cell constant \(1.14 \,\mathrm{~cm}^{-1}\), containing \(0.001\, \mathrm{M}\, \mathrm{KCl}\) at \(298\, \mathrm{~K}\) is \(1500 \,\Omega\). The molar conductivity of \(0.001\, \mathrm{M}\, \mathrm{KCl}\) solution at \(298\, \mathrm{~K}\) in \(\mathrm{S} \,\mathrm{cm}^{2}\, \mathrm{~mol}^{-1}\) is ...... . (Integer answer)

A wind-10.Powered generator converts wind energy into electrical energy. Assume that the generator converts a fixed fraction of the wind energy intercepted by its blades into electrical energy. For wind speed \(v\), the electrical 10.Power output will be most likely proportional to

For \(0<\theta<\pi / 2\), if the eccentricity of the hyperbola \(\mathrm{x}^2-\mathrm{y}^2 \operatorname{cosec}^2 \theta=5\) is \(\sqrt{7}\) times eccentricity of the ellipse \(x^2 \operatorname{cosec}^2 \theta+y^2=5\), then the value of \(\theta\) is :

Let  \(a,b,c\; \in R.\) If \(f\left( x \right) = a{x^2} + bx + c\) is such that \(a + b + c = 3\) and \(f\left( {x + y} \right) = f\left( x \right) + f\left( y \right) + xy,\) \(\forall x,y \in R,\) then \(\mathop \sum \limits_{n = 1}^{10} f\left( n \right)\) is equal to : 

For the following Friedel Craft's alkylation reaction, which of the statements are correct?

A. Major product is n-propyl benzene.
B. iso-propyl carbocation intermediate is also generated.
C. Multiple substitution is inevitable.
D. Introducing electron-donating substituent on benzene will not produce any alkyl benzene.
Choose the correct answer from the options given below:

The number of solutions, of the equation \(\mathrm{e}^{\sin x}-2 e^{-\sin x}=2\) is