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

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 ____________.

In resonance hybrid of ozone molecule, O-O bond length is ____________.

Which among the following oxides is amphoteric in nature?

What is the colour of gaseous ozone?

Van't Hoff factor for K₃[Fe(CN)₆] is 3.333. What is it's percentage dissociation in water?

Why is observed molar mass of acetic acid in benzene is greater than actual molar mass?

Standard enthalpy of formation of water is - 286 kJ mol^-1. When 1800 mg of water is formed from its constituent elements in their standard states the amount of energy liberated is ______.

Given that,

\[\ce{C_{(s)} + O_{2(g)} -> CO_{2(g)}}\]   ΔH° = -X kJ

\[\ce{2CO_{(g)} + O_{2(g)} -> 2CO_{2(g)}}\]   ΔH° = - Y kJ, then standard enthalpy of formation of carbon monoxide is ________.