datavorous/entrance-exam-dataset huggingface dataset:
Write an expression for \(K_c\) for the reaction \(\mathrm{PCl}_5(g) \rightleftharpoons \mathrm{PCl}_3(g)+C l_2(g)\).

Options:
A \(K_c=\frac{\left[\mathrm{PCl}_3\right] \cdot\left[\mathrm{Cl}_2\right]}{\left[\mathrm{PCl}_5\right]}\)
B \(K_c=\frac{\left[\mathrm{PCl}_5\right] \cdot\left[\mathrm{Cl}_2\right]}{\left[\mathrm{PCl}_3\right]}\)
C \(K_c=\frac{\left[\mathrm{PCl}_3\right]}{\left[P C l_5\right] \cdot\left[C l_2\right]}\)
D \(K_c=\frac{\left[\mathrm{PCl}_5\right] \cdot\left[\mathrm{PCl}_3\right]}{\left.\mid C l_2\right]}\)

The correct answer is:
\(K_c=\frac{\left[\mathrm{PCl}_3\right] \cdot\left[\mathrm{Cl}_2\right]}{\left[\mathrm{PCl}_5\right]}\)

Solution:
Correct Option is : (A)
\(K_c=\frac{\left[\mathrm{PCl}_3\right] \cdot\left[\mathrm{Cl}_2\right]}{\left[\mathrm{PCl}_5\right]}\)

Topic: Chemistry, Ionic Equilibrium, NEET
Write balanced equations for the following (i) NaCl is heated with sulphuric acid in the presence of MnO2. (ii) Chlorine gas is passed into a solution of NaI in water.

Options:
A i) 2NaCl + H2SO4→ Na2SO4+ 2HCl ↑ ii) Cl2+ 2NaI → 2NaCl + I2
B i) 2NaCl + H2SO4→ Na2SO4+ 2HCl ↑ + MnCl2ii) Cl2+ 2NaI → 2NaCl + I2
C i) NaCl + H2SO4→ NaHSO4+ HCl ii) Cl2+ 2NaI → 2NaCl + I2
D i) 2NaCl + H2SO4+ MnO2→ Na2SO4+ 2HCl ↑ + MnCl2ii) Cl2+ 2NaI → 2NaCl + I2

The correct answer is:
i) 2NaCl + H2SO4+ MnO2→ Na2SO4+ 2HCl ↑ + MnCl2ii) Cl2+ 2NaI → 2NaCl + I2

Solution:
Correct Option is : (D)
i) 2NaCl + H2SO4+ MnO2→ Na2SO4+ 2HCl ↑ + MnCl2ii) Cl2+ 2NaI → 2NaCl + I2

Topic: Chemistry, p Block Elements (Group 13 & 14), NEET
Write chemical equation for combustion reaction of the following hydrocarbon: Butane

Options:
A C4H10(g) + 13/2 O2(g) ➔ 4CO2(g) + 5H2O (g)
B C4H10(g) + 13 O2(g) ➔ 4CO2(g) + 10H2O (g)
C C4H10(g) + 13 O2(g) ➔ 4CO2(g) + 5H2O (g)
D 3C4H10(g) + 13/2 O2(g) ➔ 6CO2(g) + 5H2O (g)

The correct answer is:
C4H10(g) + 13/2 O2(g) ➔ 4CO2(g) + 5H2O (g)

Solution:
Correct Option is : (A)
C4H10(g) + 13/2 O2(g) ➔ 4CO2(g) + 5H2O (g)

Topic: Chemistry, Hydrocarbons, NEET
Write chemical equation for combustion reaction of the following hydrocarbon: Hexyne

Options:
A C6H10(g) + 17 O2(g) ➔ 12CO2(g) + 5H2O(g)
B 2C6H10(g) + 17/2 O2(g) ➔ 6CO2(g) + 10H2O(g)
C C6H10(g) + 17/2 O2(g) ➔ 6CO2(g) + 5H2O(g)
D 2C6H10(g) + 17 O2(g) ➔ 10CO2(g) + 5H2O(g)

The correct answer is:
C6H10(g) + 17/2 O2(g) ➔ 6CO2(g) + 5H2O(g)

Solution:
Correct Option is : (C)
C6H10(g) + 17/2 O2(g) ➔ 6CO2(g) + 5H2O(g)

Topic: Chemistry, Hydrocarbons, NEET
Write chemical equation for combustion reaction of the following hydrocarbon: Pentene

Options:
A C5H10(g) + 15 O2(g) ➔ 5CO2(g) + 10H2O(g)
B C5H10(g) + 15/2 O2(g) ➔ 5CO2(g) + 5H2O(g)
C 2C5H10(g) + 15/2 O2(g) ➔ 10CO2(g) + 5H2O(g)
D C5H10(g) + 15 O2(g) ➔ 10CO2(g) + 5H2O(g)

The correct answer is:
C5H10(g) + 15/2 O2(g) ➔ 5CO2(g) + 5H2O(g)

Solution:
Correct Option is : (B)
C5H10(g) + 15/2 O2(g) ➔ 5CO2(g) + 5H2O(g)

Topic: Chemistry, Hydrocarbons, NEET
Write chemical equation for combustion reaction of the following hydrocarbon: Toluene

Options:
A C7H8(g) + 9/2 O2(g) ➔ 10CO2(g) + 4H2O(g)
B C7H8(g) + 9/2 O2(g) ➔ 7CO2(g) + 2H2O(g)
C 2C7H8(g) + 9O2(g) ➔ 14CO2(g) + 4H2O(g)
D C7H8(g) + 9O2(g) ➔ 7CO2(g) + 4H2O(g)

The correct answer is:
C7H8(g) + 9O2(g) ➔ 7CO2(g) + 4H2O(g)

Solution:
Correct Option is : (D)
C7H8(g) + 9O2(g) ➔ 7CO2(g) + 4H2O(g)

Topic: Chemistry, Hydrocarbons, NEET
Write down functional isomers of a carbonyl compound with molecular formula C3H6O.

Options:
A CH3CHO and CH3COOH
B CH3CHO and CH3COCH3
C CH3CH2CHO and CH3COOH
D CH3CH2CHO and CH3COCH3

The correct answer is:
CH3CH2CHO and CH3COCH3

Solution:
Correct Option is : (D)
CH3CH2CHO and CH3COCH3

Topic: Chemistry, Aldehydes and Ketones, NEET