MAH-MHT CET (PCM/PCB) entrance exam Question Bank Solutions for Chemistry

The difference between heats of reaction at constant pressure and at constanl volume for the reaction

\[\ce{2C6H6_{(l)} + 15O2_{(g)} -> 12CO2_{(g)} + 6H2O_{(l)}}\] at 25°C in kJ

Which of following is not a property of red phosphorus?

Which of the following compounds does NOT undergo aldol condensation?

When 6.0 g of O₂ reacts with CIF as per \[\ce{2ClF_{(g)} + O2_{(g)} -> Cl2O_{(g)} + OF2_{(g)}}\] the enthalpy change is 38.55 kJ. The standard enthalpy of the reaction is ____________.

Identify the CORRECT statement regarding the following polymer.

\[\begin{array}{cc}
\phantom{....}\ce{O}\phantom{............}\ce{O}\phantom{...................}\ce{H}\phantom{.....}\\
\phantom{....}||\phantom{.............}||\phantom{...................}|\phantom{......}\\
\ce{-[C - (CH2)4 - C - NH - (CH2)6 - N -]_{{n}}}
\end{array}\]

Compounds of general formula, are called ____________.

\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{....}\ce{OR''}\phantom{}\\ \phantom{}\backslash\phantom{..}/\\ \ce{C}\\ \phantom{}/\phantom{..}\backslash\\ \phantom{...}\ce{R'}\phantom{...}\ce{OR''}\phantom{} \end{array}\]

The INCORRECT match for the polymer with its application is:

\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{.................}\ce{R}\phantom{..}\ce{H}\phantom{................}\\ \phantom{...}\backslash\phantom{..................}\backslash/\phantom{..........}\phantom{.......}\\ \ce{C = O ->[H2NNH2][KOH/glycol] C + N2 + H2O}\\ \phantom{}/\phantom{............}\phantom{.......}/\phantom{}\backslash\phantom{...............}\\ \phantom{}\ce{R}\phantom{..................}\ce{R}\phantom{..}\ce{H}\phantom{...............} \end{array}\]

Reaction is called ____________.

An aldehyde or ketone reacts with hydrogen cyanide to form corresponding cyanohydrin derivatives. This reaction is an example of ____________.

Identify the INCORRECT match.

Identify the equation in which change in enthalpy is equal to change in internal energy.

Which of the following is the monomer of neoprene?

Which of the following represents the structure of isopropyl methyl ketone?

Carbon black is a nanostructured material that is used in tyres of car ____________.

Identify the INCORRECT match.

Select the CORRECT match for both the polymers.

Which of the following does not give yellow solid on treatment with sodium hypoiodlte?

When 4 g of iron is burnt to ferric oxide at constant pressure, 29.28 kJ of heat is evolved. What is the enthalpy of formation of ferric oxide?

(Atomic mass of Fe = 56)

Fehling solution is ____________.

Find the CORRECT match.