List of top Chemistry Questions asked in MET

Super cooled water is liquid water that has been cooled below its normal freezing point.This state is thermodynamically

$ Ca{{(HC{{O}_{3}})}_{2}}(s) $ decomposes as $ Ca{{(HC{{O}_{3}})}_{2}}(s)\xrightarrow[{}]{{}}CaC{{O}_{3}}(s)+{{H}_{2}}O(g) $ $ +C{{O}_{2}}(g) $ Total pressure at equilibrium is found to be 0.12 bar. Thus, $ {{K}_{p}} $ is

Consider the following statements I. Repulsive forces are significant when the molecules are close together on average. II. Attractive intermolecular forces are important when the molecules are fairly close together but not necessarily touching. III. Attractive forces are ineffective when the molecules are for apart. Select correct statements.

Calculate the electronegativity of chlorine from bond energy of Cl-F bond (61 kcal mol\(^{-1}\)), F-F (38 kcal mol\(^{-1}\)) and Cl-Cl bond (58 kcal mol\(^{-1}\)) and electronegativity of fluorine 4.0 eV

A sample of ammonium phosphate (NH\(_4\))\(_3\)PO\(_4\) contains 3.18 moles of H-atom. The number of moles of O-atom in the sample is

In the following compound keto group is at position

In the following reaction sequence:

I. Formation of A has proceeded with racemisation.
II. Formation of B has proceeded with inversion.
Select the correct statement.

In this reaction, we get types of substituted alcohols (stereoisomers not considered)

Electrophile NO\(_2^+\) attacks the following compounds. In which cases, NO\(_2\) will be at meta position?

The reaction of 1-bromo-3-chlorocyclobutane with metallic sodium in dioxane gives

Find X

End product of following sequence of reaction is

Nylon threads are made of

Determine the relative size of \(\mathrm{Cs}\) atom compared to a \(\mathrm{Li}\) atom, if their densities are \(1.87\mathrm{\ g/cc}\) and \(0.53\mathrm{\ g/cc}\) respectively.

Which of the following forms cationic micelles above a certain minimum concentration?

Determine solubility of \(\mathrm{AgBr}\) in a \(0.1\mathrm{\ M\ KCN}\) solution. \([K_f \text{ of } [\mathrm{Ag(CN)_2}]^- = 5.6 \times 10^8; K_{sp} \text{ of } \mathrm{AgBr} = 7.7 \times 10^{-13}]\)

Determine the \(\mathrm{pH}\) of \(0.024\mathrm{\ M}\) hydroxylamine hydrochloride solution. (\(K_b\) of hydroxyl amine is \(10^{-8}\))

Consider the following reaction in an aqueous solution \[ \mathrm{I}^-(aq) + \mathrm{OCl}^- \rightarrow \mathrm{IO}^-(aq) + \mathrm{Cl}^-(aq) \] and the following initial concentration and initial rate data for this reaction.

Which of the following is the correct rate law for this reaction?

A certain reaction rate increases \(1000\) folds in the presence of a catalyst at \(27^\circ\mathrm{C}\). The activation energy of the original pathway is \(98\mathrm{\ kJ/mol}\). What is the activation energy of the new pathway?

Which one of the following reaction energy diagrams best represents a reaction in the reverse direction; that it is the most endothermic?

\(10\mathrm{g}\) of non-volatile solute is dissolved in \(180\mathrm{g}\) of \(\mathrm{H_2O}\) resulting in lowering of vapour pressure by \(0.5%\). Determine the boiling point of solution if \(K_b\) of water is \(0.52\mathrm{\ K\ kg\ mol^{-1}}\).

A \(0.15\) molal solution of \(\mathrm{K_4[Fe(CN)_6]}\) in water freezes at \(-0.65^\circ\mathrm{C}\). What is the apparent percentage of dissociation of this compound in this solution? (\(K_f\) for water \(= 1.86^\circ\mathrm{C\ mol}^{-1}\))

The spontaneous reaction that takes place in this cell is

Consider the following redox reaction occurring in acidic medium

The unknown standard reduction potential is