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

Identify B in the following reaction,

\[\ce{Acetaldoxime ->[Na][alcohol] A ->[NaNO2][HCl] B + H2O + N2\uparrow}\]

The bacteriostatic antibiotic from the following is ______.

If acetaldehyde is treated with Fehling's solution, the change that occurs in the system is ____________.

Acetone reacts with iodine (I₂) to form iodoform, in the presence of ____________.

For the conversion of oxygen to ozone in the atmosphere, nitric oxide in gaseous phase acts as ______.

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?

β-pleated sheets of polypeptide chains are present in ______.

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 ____________.

Compounds of general formula, are called ____________.

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

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

Reaction is called ____________.

Which of the following amino acids has \[\ce{Me - S - CH2 - CH2 -}\] group in the side chain?

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

The side chain R in cysteine is ____________.

Veronal is used as a/an ______.

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

Which of the following is not a broad spectrum antibiotics?

What is the pH of 0.5 litre buffer solution containing 0.01 mole of CH₃COOH and 0.01 mole of CH₃COONa?

[pK_a of acid = 4.74]

The enzyme which converts maltose to glucose is ______.