A. Both (A) and (R) are true and (R) is the correct explanation of (A)
B. Both (A) and (R) are true but (R) is notcorrect explanation of (A)
C. (A) is true, but (R) is not true
D. (A) is not true, but (R) is true
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 27°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 17°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
The hydrolysis constant Kh of a salt of NaOH and a weak acid (HX) If the Ka of the acid is Ka=2x10-6
Which among the following element does not liberate H2 gas on reaction with NaOH?
An organic compound X on treatment with pyridium dichromate in dichloromethane gives compound Y.Compound Y reacts with I2 and alkali to form idoform.The compound X is
HCl+H2O?H3O++Cl-
A Conjugate base of HCl is Cl-
B Conjugate base of H3O+ is H2O
C Conjugateacid base pair is HCl and H3O+
D Conjugateacid base pair is Cl- and H2O