Complete combustion of $X$ g of an organic compound gave $0.25$ g of $CO_2$ and $0.12$ g of $H_2O$. If the % of carbon is $25\%$ and of hydrogen is $4.89\%$, then $X = \underline{\phantom{xxx}} \times 10^{-3}$ g. (Nearest integer)
(Molar mass of C, H and O are 12, 1 and 16 g mol$^{-1}$ respectively.)
Given below are two statements :
Statement (I) : 1,2,3-Trihydroxypropane can be separated from water by simple distillation.
Statement (II) : An azeotropic mixture cannot be separated by fractional distillation.
In the light of the above statements, choose the correct answer from the options given below :
Match List - I with List - II.
| List - I Mixture of Compounds |
List - II Reagent used to distinguish |
||
|---|---|---|---|
| A | Diethyl amine + Ethyl amine | I | Bromine water |
| B | Acetaldehyde + Acetone | II | CHCl₃ + KOH, Δ |
| C | Ethanol + Phenol | III | Neutral FeCl₃ |
| D | Benzoic acid + Cinnamic acid | IV | Ammoniacal silver nitrate |
Choose the correct answer from the options given below :
A student has been given 0.314 g of an organic compound and asked to estimate Sulphur. During the experiment, the student has obtained 0.4813 g of barium sulphate. The percentage of sulphur present in the compound is _________. (Given Molar mass in g mol−1 S: 32, BaSO4: 233)
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