Description : Who proposed VSEPR theory ? What does it explain ?
Last Answer : VSEPR theory was proposed by Sedgwick and Powell. It explains the shapes of polyatomic molecules.
Description : Write two limitation of VSEPR theory
Last Answer : Ans. (i) It is unable to predict the shapes of many molecules (ii) It does not consider the directional effect of bonding.
Description : Which of the following will have the lowest boiling point? (a) CH3Cl (b) CH4 (c) CH2Cl2 (d) CHCl3
Last Answer : CH4
Description : Which of the following compounds has been suggested as causing depletion of the ozone layer in the upper stratosphere? (a) CH4 (b) CCl2F2 (c) CF4 (d) CH2Cl2
Last Answer : CCl2F2
Description : Collin’s Reagent is? a. K2Cr2O7/H2SO4 b. PCC/CH2Cl2 c. PDC/DCM d. CrO3/pyridine
Last Answer : d. CrO3/pyridine