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

Which is the CORRECT representation for the solubility product (K_sp) of Bi₂S₃?

Which of the following statements is INCORRECT?

The energy associated with the first orbit of He⁺ is ____________ J.

The osmotic pressure of a solution containing 10 g of cane sugar dissolved in 100 mL of water at 70°C is ____________.

Choose the INCORRECT statement about \[\ce{C2H5-O-C2H5}\] from the following.

The heat evolved in the combustion of benzene is given by

\[\ce{C6H6 + 7 1/2O2 -> 6CO2_{(g)} + 3H2O_{(l)}}\]; ΔH = −3264.6 kJ

Which of the following quantities of heat energy will be evolved when 39 g C₆H₆ are burnt?

Which of the following is/are CORRECT according to Bohr's atomic theory?

(I) Energy is emitted when electron moves from a higher stationary state to a lower one.

(II) Orbits are arranged concentrically around the nucleus in an increasing order of energy.

(III) The energy of an electron in the orbit changes with time.

If van't Hoff factor of monofluoroacetic acid in water is 1.076. What is it's degree of dissociation?

Which of the following salts of same concentration will have same value of van't Hoff factor as that of K₄[Fe(CN)₆]?

Which of the following equation is correct to determine osmotic pressure using van't Hoff equation?

Which of the following compounds is Not present in its standard state at 25°C and 1 atmosphere pressure?

In H₂–O₂ fuel cell, the reaction taking place at negative electrode is:

Enthalpy of formation of two compounds x and y are −84 kJ and −156 kJ respectively. Which of the following statements is CORRECT?

Given the reaction,

\[\ce{CH2O_{(g)} + O2_{(g)} -> CO2_{(g)} + H2O_{(g)}}\] ΔH = −527 kJ

How much heat will be evolved in the formation of 60 g of CO₂?

Calculate the enthalpy of hydrogenation of C₂H_4(g), given that the enthalpy of formation of ethane and ethylene are −30.2 kcal and +12.5 kcal respectively.

When ethyl methyl ether is treated with cold concentrated HI, it gives two products. Products formed are ____________.

Combustion of glucose takes place as

\[\ce{C6H12O6_{(s)} + 6O2_{(g)} -> 6CO2_{(g)} + 6H2O_{(g)}}\]; ΔH = −72 kcal mol⁻¹

The energy needed for the production of 1.8 g of glucose by photosynthesis will be ___________.

The enthalpy of formation of nitrogen dioxide is +33.2 kJ mol⁻¹. The enthalpy of the reaction \[\ce{2N2_{(g)} + 4O2_{(g)} -> 4NO2_{(g)}}\]; is ____________.

The CORRECT relationship between molar solubility (S) and solubility product (K_sp) for salt, MgC₂O4 is ____________.

The radius of the third Bohr orbit for hydrogen atom is ____________.