Class 12 Physics | 40 Strategic Questions 🔥 | CBSE Board 2027 & Second Term Exam

Class 12 Physics | Kirchhoff’s Rules – The Real Concept | Current Electricity | Malayalam

Class 12 Physics | Current Electricity | Circuit Question Series – Part 1 | Explained in Malayalam

Electrostatic Potential & Capacitance | Part 3 | Class 12 CBSE Physics | Malayalam | OSB

Electrostatic Potential & Capacitance | Part 2 | Class 12 Physics in Malayalam | CBSE 2026-27

Electrostatic Potential & Capacitance | Full Chapter in Malayalam | physics | Part 1 | Class 12

How to Use Logarithmic Table Easily? | Malayalam Explanation | OSB

pKb of aniline is more than that of methylamine. Explain.

How to Write Chemical Formula | Best Ever Method | Malayalam | Class 9 & Class 10 | State & CBSE

Solutions Chapter 1 Chemistry Malayalam Explanation | CBSE Class 12 Physical Chemistry

The rate of a reaction quadruples when the temperature changes from 293 K to 313 K.Calculate

The time required for 10% completion of a first order reaction at 298 K is equal to that required

The decomposition of A into product has value of k = 4.5 | NCERT SOLUTIONS | OSB

The rate constant for the first order decomposition of H₂O₂ is given by the following equation

The decomposition of hydrocarbon follows the equation:k = 4.5 x |NCERT | OSB

Sucrose decomposes in acid solution into glucose and fructose according to the first order rate law

Consider a certain reaction A → Products with k = 2.0 x | NCERT SOLUTIONS | OSB

The rate constant for the decomposition of hydrocarbons is 2.418 x | NCERT | OSB

The following data were obtained during the first order thermal decomposition of SO₂Cl₂ at constant

For the decomposition of azoisopropane to hexane and nitrogen at 543 K, the following data are

A first order reaction takes 40 minutes for 30% decomposition. Calculate half life period

For a first order reaction, show that time required for 99% completion is twice the time required

The rate constant for a first order reaction is 60 s⁻¹. How much time will it take to reduce the

The half-life for radioactive decay of ₆¹⁴C is 5730 years.An archaeological artifact containing wood

Calculate the half-life of a first order reaction from its rate constants given below: (i) 200 s⁻¹

The reaction between A and B is first order with respect to A and zero order with respect to B. Fill

The following results have been obtained during the kinetic studies of the reaction:2A + B → C + D

In a reaction between A and B, the initial rate of reaction (r₀) was measured for different initial

A reaction is first order in A and second order in B.(i) Write the differential rate equation.|NCERT

In a pseudo first order hydrolysis of ester in water, the following results were obtained

The decomposition of NH₃ on platinum surface is zero order reaction. What are the rates of

What is the effect of temperature on the rate constant of a reaction? How can this temperature

A reaction is of second order with respect to a reactant. How is the rate of reaction affected if

Mention the factors which affect the rate of a chemical reaction.

The decomposition of dimethyl ether leads to the formation of CH₄, H₂ and CO and the reaction rate

For the reaction: 2A + B → A₂B, the rate = k[A][B]² with k = 2.0 × 10⁻⁶ mol⁻² L² s⁻¹. Calculate

From the rate expression for the following reactions, determine their order of reaction and the

The rate of the chemical reaction doubles for an increase of 10 K in absolute temperature from 298 K

What will be the effect of temperature on rate constant?

Time required to decompose SO₂Cl₂ to half of its initial amount is 60 minutes. If the decomposition

A first-order reaction has a rate constant 1.15 × 10⁻³ s⁻¹. How long will 5 g of this reactant take

The conversion of molecules X to Y follows second order kinetics. If concentration of X is increased

For a reaction, A + B → Product; the rate law is given by, r = k [A]¹ᐟ² [B]². What is the order

In a reaction, 2A → Products, the concentration of A decreases from 0.5 mol L⁻¹ to 0.4 mol L⁻¹ in 10

For the reaction R → P, the concentration of a reactant changes from 0.03 M to 0.02 M in 25 minutes.

The energy associated with the first orbit in the hydrogen atom is –2.18 × 10⁻¹⁸ J atom⁻¹|NCERT

A photon of wavelength 4 × 10⁻⁷ m strikes on metal surface, the work function of the metal | NCERT

Electromagnetic radiation of wavelength 242 nm is just sufficient to ionise the sodium atom. |NCERT

Find energy of each of the photons which(i) corresponds to light of frequency 3 × 10¹⁵ Hz.|NCERT

What is the number of photons of light with a wavelength of 4000 pm that provide 1 J of energy?

Calculate the wavelength, frequency and wavenumber of a light wave whose period is 2.0 × 10⁻¹⁰ s.

A 25 watt bulb emits monochromatic yellow light of wavelength 0.57 μm.| NCERT | CBSE

Target NEET 2026| Part 4 | 5 Impact NEET PYQ Questions a Day|

How much electricity in terms of Faraday is required to produce:(i) 20 g of calcium | NCERT

How much charge is required for the following reductions:(i) 1 mol of Al³⁺ to Al?(ii) | NCERT

Conductivity of 0.00241 M acetic acid is 7.896 × 10⁻⁵ S cm⁻¹. Calculate its molar conductivity|NCERT

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Target NEET 2026| Part 2 | 5 Impact NEET PYQ Questions a Day|

The resistance of a conductivity cell containing 0.001 M KCl solution at 298 K is 1500 Ω.|NCERT

The conductivity of 0.20 M solution of KCl at 298 K is 0.0248 S cm⁻¹.Calculate its molar |CBSE