Related InterviewSolutions

• The correct order of boiling points of hydrogen halide is:A. `HF gt HCI gt HBr gt HI`B. `HI gt HBr gt HCI gt HF`C. `HCI gt HF gt HI gt HBr`D. `HF gt HI gt HBr gt HCI`
• Which one of the following compounds is an allylic halide?A. B. C. D.
• Suggest a method to purify benzene containing non-volatile impurities:A. Steam distillationB. distillation under reduced pressureC. simple distillationD. sublimation
• Distillation under reduced pressure is used to purify liquids which:A. are highly volatileB. have high boiling pointsC. are explosivesD. decomposes below their boiling points
• Two immiscible liquids are separated by:A. separating funnelB. fractional distillationC. chromatographyD. sublimation
• A mixture of camphor and benzoic acid can be separated byA. sublimationB. fractional distillationC. chemical methodD. extraction with solvents
• Separation of two substances by fractional crystallisation depends upon their differences in:A. densitiesB. volatilityC. solubilityD. crystalline shape
• Double bond equivalents help in search for structure of a compound. It involves following steps: Calculate the expected number of hydrogen atoms in the saturated structure. (a) For `C_(n)` there would be: `(2n+2)` hydrogens if compound contains C,H,O only. (b) For `C_(n),N_(m)` there would be `(2n+2+m)` hydrogens. Subtract the actual number of hydrogen and divide by 2. This gives the double bond equivalents. Ring is considered to possess single DBE. Double bond equivalent of `C_(7)H_(16)O` would be
• Which of the following gives correct arrangement of compounds involved based on their bond strength?A. `HF gt HCI gt HBr gt HI`B. `HI gt HBr gt HCI gt HF`C. `HF gt HBr gt HCI gt HI`D. `HCI gt HF gt HBr gt HI`
• How many bonds are there in A. `14sigma, 8pi`B. `18 sigma, 8pi`C. `19 sigma, 4pi`D. `14 sigma, 2pi`