Chemistry Test-...

Which of the following does not give a silver mirror test with Tollen's reagent?

How many grams of \(\mathrm{CH}_3 \mathrm{OH}\) should be added to water to prepare \(150 \mathrm{ml}\) solution of \(2 \mathrm{M}~ \mathrm{CH}{ }_3 \mathrm{OH}\) ?

Which of the following can not be predicted from an equilibrium constant for a reaction?

Current in an electrolyte is carried by ________.

How much mass of \({ }^{235} U\) is required to undergo fission each day to provide \(3000 MW\) of thermal power? Average energy per fission is \(202.79 MeV\).

Given below are the half-cell reactions:

\(M n^{2+}+2 e^{-} \rightarrow M n ; E^{\circ}=-1.18 V\)

\(2\left(M n^{3+}+e^{-} \rightarrow M n^{2+}\right) ; E^{\circ}=+1.51 V\)

The \(E^{\circ}\) for \(3 \mathrm{Mn}^{2+} \rightarrow \mathrm{Mn}+2 \mathrm{Mn}^{3+}\) will be:

The gas given off when a metal reacts with an acid is:

Gibbs combined the first and the second laws of thermodynamics and gave a thermodynamic function 'G' which gets affected by

(a) The change in the enthalpy of the system.

(b) The change in the entropy of the system.

(c) The temperature of the system.

In the hydroboration - oxidation reaction of propene with diborane, \(H _{2} O _{2}\) and \(NaOH\), the organic compound formed is:

The elements having the least number of electrons shells: