Related InterviewSolutions

• In coloumn chromatography the moving phase is constitude ofA. a substance which have to be sepratedB. eluentC. adsorbentD. mixture of eluent and substance to be seprated
• Steam distillation is applied for the separation of those compounds which areA. steam volatile and soluble in waterB. steam volatile and decompose in waterC. steam volatile and insoluble in waterD. capable of chemical reaction with steam.
• Latest technique for purification isolation and separation of organis substance isA. DistillationB. crysrtallistionC. sublimationD. Chromatography
• Which of the following method of separation can be applied to the mixture of liquids having different boiling points ?A. solvent extraction —B. differential crystallisationC. fractional distillationD. steam distillation
• The separation of mixture of two compounds by chromatographic technique is based uponA. differential solubilitiesB. different densitesC. different absorptionD. differential adsorption
• Simple distrillation can be used to separate compound whichA. are highly volatile and have very close boiling pointsB. are steam volatileC. decomposes on heatingD. are volatile and have non volatile impuries
• A compound has simplest formula `CH_2` To which hydrocarbon serices does it bleong ?A. AlkanesB. CycloalkanesC. AlkynesD. non of these
• A formula of a compound which gives whole number atomic ratio in one molecule g compound is calledA. structural formulaB. molecular formulaC. projection formulaD. empirical formula,
• The function of boiling the sodium extract with concentrated nitric acid before testing halogens isA. to make solution clearB. to destroy `CN^- and S^(2- )ion`C. to make the solution acidicD. to bring common ion effect.
• Soda lime test is used to detect one of the following element of organic compoundA. CB. HC. ND. S