The molecular mass of an organic compound is 78 g mol-1. Its empirical formula is CH. The molecular formula is ………….
(A) C2H4
(B) C2H2
(C) C6H6
(D) C4H4
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Compound of molecular formula \( C4H8O may have functional group - (a) Alcohol (b) Ether (c) Carboxylic acid (d) Aldehyde \( a, b, c \) \( b, c \& d \) \( a, b \& d \) \( a, b, c \& d \)
a, b, and d.
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Ionization enthalpy of Li is 520 kJ mol^(-1) while that of F is 1681 kJ mol^(-1) . Explain.
Both Li and F belong to period 2. Across a period, the screening effect is the same while the effective nuclear charge increases. As a result, the outer electron is held more...
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A mixture of CuS (molecular weight = `M_(1)`) and `Cu_(2)S` (molecular weight `=M_(2)`) is oxidised by `KMnO_(4)` (molecular weight `=M_(3)`) in acidi
Correct Answer - `(M_(1))/(6), (M_(2))/(8), (M_(3))/(5)`
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A compound contains 4.07% hydrogen, 24.27% carbon and 71.65% chlorine by mass. Its molar mass is 98.96 g mol^(-1).
Given : Percentage of H, C and Cl = 4.07% , 24.27% and 71.65% by mass respectively. To find : Empirical formula and molecular formula Calculation : Step I : Check whether the sum of all...
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In a chemical laboratory, Priyal was asked to isolate an organic compound from its aqueous solution. She added ethyl acetate to the given sample,
i. Method used : Solvent extraction method. Principle : Extraction of compound takes place based on the difference in solubility of compound in two liquids, In this process, the solute distributes itself between two...
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The method used to separate a given organic compound present in aqueous solution by shaking with a suitable solvent in which
Option : (C) solvent extraction
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…………… named the compounds derived from living organisms as organic compound
B) Berzelius
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The characteristic properties of an organic compound which depend on atom or group of atoms in its molecule is known as
B) functional group
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Mass by mass percentage of a solution = A) mass of solute/mass of solution × 100
A) \(\cfrac{mass \,of \,solute}{mass \,of \,solution}\) × 100
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Which of the following statements is / are true? A) Molecular mass is expressed in unified mass (U).
D) All are correct.
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