Which of the following is correct
Observe the following reaction<br>2A + B → C<br>The rate of C is 2.2 x 10<sup>-3</sup> mol L<sup>-1</sup> min<sup>-1</sup>.What is the value of - d[A]/dt (in mol. L<sup>-1</sup>min<sup>-1</sup>)
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 px and pz orbitals. Which of the following is X ?
AB is an ionic solid. The ionic radii of A<sup>+</sup> and B<sup>-</sup> are respectively r<sub>c</sub> and r<sub>a</sub>. Lattice energy of AB is proportional to :
The rate constant of a first order reaction at 27Â°C is 10<sup>-3</sup> min<sup>-1</sup>. The temperature coefficient of this reaction is 2. What is the rate constant (in min<sup>-1</sup>) at 17Â°C for this reaction ?
The number of sigma and pi (π) bonds present in benzene respectively are :
The number of pπ - dπ 'pi' bonds present in XeO3and XeO4molecules, respectively are