Purification and Characterisation of Organic Compounds

JEE Main Chemistry · 9 questions

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• Given below are two statements: Statement I: Vapours of the liquid with higher boiling point condense before vapours of the…20268 April, Shift 2 · Q62
• Given below are two statements: Statement I: A mixture of C_12 H_22 O_11 (sugar) and NaCl can be separated by dissolving sugar in…20266 April, Shift 2 · Q62
• R_f value for 2-methylpropene in a solvent system (Ethyl acetate + ether) is 0.42. 2-methylpropene is treated with dilute H_2…20266 April, Shift 1 · Q63
• Match List - I with List - II. Choose the correct answer from the options given below:20265 April, Shift 2 · Q62
• In an estimation of sulphur by Carius method 0.2 g of the substance gave 0.6 g of BaSO_4. The percentage of sulphur in the…20265 April, Shift 1 · Q72
• In sulphur estimation, 2.0 × 10^-3 mol of an organic compound (X) (molar mass 76 g mol^-1 ) gave 0.4813 g of barium sulphate…20264 April, Shift 2 · Q75
• 0 g of a bromo hydrocarbon (X) was subjected to Carius analysis, gave 3.36 g of AgBr. The percentage of carbon in the compound…20264 April, Shift 1 · Q73
• Complete combustion of X g of an organic compound gave 0.25 g of CO_2 and 0.12 g of H_2 O. If the \% of carbon is 25 \% and of…20262 April, Shift 2 · Q62
• Given below are two statements: Statement (I): 1,2,3-Trihydroxypropane can be separated from water by simple distillation.…20262 April, Shift 1 · Q63