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

An element has a bee structure with cell edge of 288 pm. The density of element is 7.2 g cm^-3. What is the atomic mass of an element?

The optically inactive amino acid is ____________.

Identify the INCORRECT reaction.

The conjugate acid of \[\ce{CO^2-_3}\] is ____________.

Identify A in the following reaction.

\[\ce{A + CH3MgBr ->[Ether] complex ->[H3O+] (CH3)3C - OH}\]

Identify the enzyme X in the following reaction.

\[\ce{H2O2(aq) ->[x] H2O(l) + \frac{1}{2} O2(g)}\]

What is standard N ≡ N bond enthalpy from following reaction,

\[\ce{N2_{(g)} + 3H2_{(g)} -> 2NH3_{(g)}; \Delta H^0 = - 83 kJ}\]

\[\ce{ΔH^0_{(H-H)}}\] = 435 kJ; \[\ce{ΔH^0_{(N-H)}}\] = 389 kJ

Identify the enzyme that catalyses the reaction of CO₂ with water in huma body.

Which among the following amino acids has lowest molar mass?

Calculate the potential of hydrogen electrode at 25°C:

Pt, H₂ (1 atm) | H⁺ (0.1 M)

For which of the following ∆U = ∆H?

Which of the following gives red precipitate with Fehling's solution?

ln which of the following reactions, both oxidised and reduced forms of the same compound are obtained?

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?