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

Which one of the following is NOT possible?

Which is the INCORRECT property of lanthanoids?

Which element among the following lanthanoids has the smallest atomic radius?

Under identical conditions, the pressure of a real gas is ____________.

Which of the following molecules contain 25% s-character of carbon atom in hybrid state?

Which of the following molecules contain hybrid orbitals with 25% 's' character?

Chlorine trifluoride molecule undergoes sp³d hybridization, excited state electronic configuration of chlorine atom can be written as:

For the following reaction:

\[\ce{Fe2O3_{(s)} + 3CO_{(g)} -> 2Fe_{(s)} + 3CO2_{(g)}}\]; ΔH⁰ = −29.8 kJ and ΔS⁰ = 15 J K⁻¹. What is the value of \[\ce{ΔS_{(total)}}\] at 298 K?

Heat of combustion of C_(s), H_2(g) and C₂H_6(g) are −x₁, −x₂ and −x₃ respectively. Hence heat of formation of C₂H_6(g) is ____________.

Which of the following conditions indicates the reaction is spontaneous?

Equilibrium constant for a reaction is 20. What is the value of ∆G⁰ at 300 K? (R = 8 × 10⁻³ kJ)

At what temperature, a chemical reaction will have the following values of ∆G, ∆S and ∆H?

∆G = −5.2 KJ mol⁻¹, ∆H = 145.6 kJ mol⁻¹, ∆S = −216 kJ mol⁻¹

What is the value of effective magnetic moment found in +3 oxidation state of Chromium (Z = 24)?

For a reaction to be non-spontaneous at all temperatures, values of ΔH and ΔS respectively are ____________.

The observed electronic configuration of promethium (atomic number 61) is ____________.

In haloalkanes and haloarenes, halogen atom is bonded to ____________ hybridized carbon atom of an alkyl and aryl groups, respectively.

In oxy-acetylene flame for welding and cutting of metals, a mixture of ____________ is used.

What type of hybridization results in tetrahedral geometry?

Which element from following forms colourless compounds in +2 oxidation state?

Identify the correct decreasing order of ionic radii of lanthanoids.