Chemistry
Which of the following statements are applicable to a balanced chemical equation of an elementary reaction ?
03
Jun
Which of the following statements are applicable to a balanced chemical equation of an elementary reaction ? Which of the following statements are applicable to a balanced chemical equation of an elementary reaction ? June 3, 2021 Category: Chemistry , NCERT Exemplar Class 11 ,
Rate law cannot be determined form balanced chemical equation if
03
Jun
Rate law cannot be determined form balanced chemical equation if Rate law cannot be determined form balanced chemical equation if June 3, 2021 Category: Chemistry , NCERT Exemplar Class 11 ,
Consider the reaction A⟶B; the concentration of both the reactants and the products varies exponentially with time. Which of the following figures correctly describes the change in concentration of reactants and products with time?
03
Jun
Consider the reaction A⟶B; the concentration of both the reactants and the products varies exponentially with time. Which of the following figures correctly describes the change in concentration of reactants and products with time? The role of a catalyst is to change June 3, 2021 Category: Chemistry , NCERT Exemplar Class 11 ,
The value of rate constant of a pseudo first order reaction (a) depends on the concentration of reactants present in a small amount.
03
Jun
The value of rate constant of a pseudo first order reaction (a) depends on the concentration of reactants present in a small amount. The value of rate constant of a pseudo first order reaction (a) depends on the concentration of reactants present in a small amount. June 3, 2021 Category: Chemistry , NCERT Exemplar Class [...]
Which of the following statements is not correct for the catalyst? (a) It catalyses the forward and backward reaction to the same extent.
03
Jun
Which of the following statements is not correct for the catalyst? (a) It catalyses the forward and backward reaction to the same extent. Which of the following statements is not correct for the catalyst? (a) It catalyses the forward and backward reaction to the same extent. June 3, 2021 Category: Chemistry , NCERT Exemplar Class [...]
A first order reaction is 50% completed in 1.26×10^14s. How much time would it take for 100% completion ?
03
Jun
A first order reaction is 50% completed in 1.26×10^14s. How much time would it take for 100% completion ? A first order reaction is 50% completed in 1.26×10^14s. How much time would it take for 100% completion ? June 3, 2021 Category: Chemistry , NCERT Exemplar Class 11 ,
Which of the following statements is incorrect about the collision theory of chemical reaction ? (i) It considers reacting molecules or atoms to be hard spheres and ignores their structural features
03
Jun
Which of the following statements is incorrect about the collision theory of chemical reaction ? (i) It considers reacting molecules or atoms to be hard spheres and ignores their structural features Which of the following statements is incorrect about the collision theory of chemical reaction ? (i) It considers reacting molecules or atoms to be [...]
Rate law for the reaction A+2B→C, is found to be Rate = k [A] [B]. If the concentration of reactant B is doubled keeping the concentration of A constant, the value of rate constant will be
03
Jun
Rate law for the reaction A+2B→C, is found to be Rate = k [A] [B]. If the concentration of reactant B is doubled keeping the concentration of A constant, the value of rate constant will be is found to be Rate = k [A] [B]. If the concentration of reactant B is doubled keeping the [...]
Which of the following graph represents exothermic reaction ?
03
Jun
Which of the following graph represents exothermic reaction ? Which of the following graph represents exothermic reaction ? June 3, 2021 Category: Chemistry , NCERT Exemplar Class 11 ,
Which of the following expression is correct for the rate of reaction given below ? 5Br-(aq)+BrO-3(aq)+6H+(aq)→3Br2(aq)+3H2O(l) .
03
Jun
Which of the following expression is correct for the rate of reaction given below ? 5Br-(aq)+BrO-3(aq)+6H+(aq)→3Br2(aq)+3H2O(l) . Which of the following expression is correct for the rate of reaction given below ? 5Br-(aq)+BrO-3(aq)+6H+(aq)→3Br2(aq)+3H2O(l) . June 3, 2021 Category: Chemistry , NCERT Exemplar Class 11 ,