Chemistry

If the rate of decomposition of N2O5 during a certain time internal is 2.4×10^−4 mol L^−1 min^−1. N2O5 →2NO2 + 2/1O2 What is the rate of formation of NO2 and O2 mol L^−1 min^−1 ? If the rate of decomposition of N2O5 during a certain time internal is 2.4×10^−4 mol L^−1 min^−1. N2O5 →2NO2 + [...]

In the reaction A gives product , -da/dt = k1A. If we start with 10 M of A, then after one natural life time, concentration of A is decreased to -da/dt = k1A. If we start with 10 M of A concentration of A is decreased to In the reaction A gives product then after [...]

For the reaction, 2NO + Br2 → 2NOBr following mechanism has been given: (1) NO+Br2 ⇌Fast NOBr2​ (2) NOBr2 +NO gives Slow 2NOBr Hence, rate law is 2NO + Br2 → 2NOBr following mechanism has been given: (1) NO+Br2 ⇌Fast NOBr2​ (2) NOBr2 +NO gives Slow 2NOBr Hence For the reaction rate law is June [...]

For nth order reaction (dx/dt)=Rate = k[A]0n Graph between log (rate) against log[A0] is of the type Lines P, Q, R, S are of the order: -q For nth order reaction (dx/dt)=Rate = k[A]0n Graph between log (rate) against log[A0] is of the type Lines P R S are of the order: the activation energy [...]

Rate constant k varies with temperature as given by equation log k (min^−1) = 5 − 2000/T Consider the following about this equation Rate constant k varies with temperature as given by equation log k (min^−1) = 5 − 2000/T Consider the following about this equation June 2, 2021 Category: AIIMS Last 24 Years Solved [...]

On introducing a catalyst at 300 k, the activation energy increases by 5.75 kJ/mol. The ratio of rate constant k2/k1 will be On introducing a catalyst at 300 k the activation energy increases by 5.75 kJ/mol. The ratio of rate constant k2/k1 will be June 2, 2021 Category: AIIMS Last 24 Years Solved 1996 - [...]

Assertion : Sb (III) is not precipitated as sulphide when in its alkaline solution H2S is passed. Reason : The concentration of S2- ion in alkaline medium is inadequate for precipitation. Assertion : Sb (III) is not precipitated as sulphide when in its alkaline solution H2S is passed. Reason : The concentration of S2- ion [...]

Assertion: Addition of silver ions to a mixture of aqueous sodium chloride and sodium bromide solution will first precipitate AgBr rather than AgCl. Reason : Ksp of AgCl Assertion: Addition of silver ions to a mixture of aqueous sodium chloride and sodium bromide solution will first precipitate AgBr rather than AgCl. Reason : Ksp of [...]

Assertion : Mixture of CH3COOH and CH3COONH4 is an example of acidic buffer. Reason : Acidic buffer contains equimolar mixture of weak acid and its salt with weak base. Assertion : Mixture of CH3COOH and CH3COONH4 is an example of acidic buffer. Reason : Acidic buffer contains equimolar mixture of weak acid and its salt [...]

Assertion : Sb2S3 is not soluble in yellow ammonium sulphide. Reason : The common ion effect due to S2- ions reduces the solubility of Sb2S3. Assertion : Sb2S3 is not soluble in yellow ammonium sulphide. Reason : The common ion effect due to S2- ions reduces the solubility of Sb2S3. November 16, 2020 Category: AIIMS [...]