02:28:45

NEET | ONESHOT | PYQs 37 YEARS | THERMODYNAMICS | CHEMISTRY FORUM | NITISH SIR

04:52

When 5 litres of a gas mixture of methane and propane is perfectly combusted at 0°C and 1 atmosphere

04:47

The densities of graphite and diamond at 298K are 2.25 and 3.31 gcm-3, respectively.

01:07

A reaction occurs spontaneously if

01:37

Identify the correct statement for change of Gibbs’ energy for a system Gsystem at constant

03:02

Standard entropies of X2,Y2 and XY3 are 60,40 and 50 J K-1mol-1 respectively. For the reaction

01:29

The absolute enthalpy of neutralisation of the reaction :

02:34:04

NEET | ONESHOT | PYQs 37 YEARS | IONIC EQUILIBRIUM | CHEMISTRY FORUM | NITISH SIR

01:44

Given that C+O2→CO2,ΔH°=-xkJ 2CO+O2→2CO2,ΔH°=-ykJ The enthalpy of formation of carbon monoxide will

03:04

In the reaction: S+3/2O2→SO3+2xkcal and SO2+1/2O2→SO3+ykcal, the heat of formation of SO2 is

02:50

Enthalpy of CH4+1/2O2→CH3OH is negative. If enthalpy of combustion of CH4 and CH3OH are x and y

01:34

The molar heat capacity of water at constant pressure, C, is 75JK-1mol-1. When 1.0kJ of heat is

01:04

Which of the following is correct option for free expansion of an ideal gas under adiabatic

01:45

Equal volumes of two monatomic gases, A and B at same temperature and pressure are mixed.

03:59

Under isothermal conditions, a gas at 300K expands from 0.1L to 0.25L against a constant external

01:46

Identify the correct order of solubility in aqueous medium.

03:56

The values of Ksp of CaCO3 and CaC2O4 are 4.7×10-9 and 1.3×10-9 respectively at 25°C.

02:35

Using the Gibbs’ energy change, G=+63.3kJ, for the following reaction,

04:49

The Ksp of Ag2CrO4,AgCl,AgBr and AgI are respectively, 1.1×10-12,1.8×10-10,5.0×10-13, 8.3×10-17

05:45

MY and NY3, two nearly insoluble salts, have the same Ksp values of 6.2×10-13 at room temperature.

01:39

A physician wishes to prepare a buffer solution at pH=3.85 that efficiently resists changes in pH

01:28

The rapid change of pH near the stoichiometric point of an acid-base titration is the basis

00:58

Buffer solutions have constant acidity and alkalinity because

02:44

Which will make basic buffer?

01:45

Which statement is wrong about pH and H+ ?

04:07

The hydrogen ion concentration of 10-8MHCl aqueous solution at 298KKw=10-14 is

03:07

The percentage of pyridine C5H5N that forms pyridinium ion C5H5NH in a 0.10M aqueous pyridine

05:33

Following solutions were prepared by mixing different volumes of NaOH and HCl of different

02:27

Which of the following is not a Lewis acid ?

01:24:27

NEET | ONESHOT | PYQs 37 YEARS | CHEMICAL EQUILIBRIUM | CHEMISTRY FORUM | NITISH SIR

01:04

For a given exothermic reaction, Kp and Kp' are the equilibrium constants at temperatures T1p and T2

03:50

Match List I (Equations) with List II (Type of processes) and select the correct option.

04:08

Consider the following reaction in a sealed vessel at equilibrium with concentrations of

00:52

The reaction quotient (Q) for the reaction

02:42

In Haber process, 30 litres of dihydrogen and 30 litres of dinitrogen were taken for reaction which

00:46

If the value of equilibrium constant for a particular reaction is 1.6×1012, then at equilibrium the

00:36

Equilibrium constant Kp for following reaction

02:32

If the concentration of OH- ions in the reaction

07:23

The values of Kp1 and Kp2 for the reactions, X⇌Y+Z A⇌2B

01:02:41

CHEMICAL REACTIONS AND EQUATIONS ｜ CHAPTER 1 ｜ CLASS 10｜ NCERT LINE WISE EXPLANATION JKZ

01:27

K1 and K2 are equilibrium constants for reactions (i) and (ii) respectively.

00:48

The equilibrium constant for the reaction N2+3H2⇌2NH3 is K, then the equilibrium constant for the

00:57

If K1 and K2 are the respective equilibrium constants for the two reactions,

01:10

Equilibrium constants K1 and K2 for the following equilibria :

02:28

The dissociation constants for acetic acid and HCN at 25C are 1.5×10-5 and 4.5×10-10 respectively.

01:18

The value of equilibrium constant of the reaction,

02:35

For the reaction, N2(g)+O2(g)⇌2NO(g), the equilibrium constant is K1. The equilibrium constant is K2

03:25

Given that the equilibrium constant for the reaction,

03:39

The equilibrium constants of the following are

02:12

Which one of the following is most soluble ?

01:15

The solubility of AgCl will be minimum in

03:34

The solubility product of CuS,Ag2S and HgS are 10-31,10-44 and 10-54 respectively.

01:00

The solubility of a saturated solution of calcium fluoride is 2×10-4 moles per litre. Its solubility

02:19

Solubility of M2S salt is 3.5×10-6 then find out solubility product.

01:08

Solubility of MX2 type electrolytes is 0.5×10-4 mol/ lit., then find out Ksp of electrolytes.

01:48

The solubility product of AgI at 25°C is 1.0×10-16mol2L-2. The solubility of AgI in 10-4N solution

01:38

The solubility product of a sparingly soluble salt AX2 is 3.2×10-11. Its solubility (in moles/L) is

02:55

H2S gas when passed through a solution of cations containing HCl precipitates the cations

04:32

In qualitative analysis, the metals of group I can be separated from other ions by precipitating the

01:50

pH of a saturated solution of Ba(OH)2 is 12 . The value of solubility product Ksp of Ba(OH)2 is