Observe the following reaction<br>2A + B &#8594; C<br>The rate of C is 2.2 x 10^-3 mol L^-1 min^-1.What is the value of - d[A]/dt (in mol. L^-1min^-1)

A catalyst increases the rate of reaction because it :<br>

Assertion (A) : A catalyst increases the rate of a reaction.<br>Reason (R) : In presence of a catalyst, the activation energy of the reaction increases. <br>The correct answer is<br>

Which of the following is not tetrahedral

A molecule (X ) has <br>(i) four sigma bonds formed by the overlap of sp² and s orbitals (ii) one sigma bond formed by sp² and sp² orbitals and (iii) one π bond formed by p_x and p_z orbitals. Which of the following is X ?

AB is an ionic solid. The ionic radii of A⁺ and B^- are respectively r_c and r_a. Lattice energy of AB is proportional to :

The rate constant of a first order reaction at 27°C is 10^-3 min^-1. The temperature coefficient of this reaction is 2. What is the rate constant (in min^-1) at 17°C for this reaction ?

The number of sigma and pi (&#960;) bonds present in benzene respectively are :

The number of pπ - dπ 'pi' bonds present in XeO₃and XeO₄molecules, respectively are

The hydrolysis constant K_h of a salt of NaOH and a weak acid (HX) If the K_a of the acid is K_a=2x10^-6