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42. (a) In the estimation of Carbon and Hydrogen in a compound by Leibig's method, draw

a neat labelled diagram of the apparatus and write the formula to find the percentage
of Carbon and Hydrogen.
(b) Write any two differences between inductive effect and electromeric effect.
clonous senes.

User Lozzajp
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Final answer:

Leibig's method is used to estimate the percentage of Carbon and Hydrogen in a compound. The formulas to find the percentages are provided along with a labelled diagram of the apparatus. Additionally, the differences between inductive effect and electromeric effect are explained.


Step-by-step explanation:

(a) Leibig's method is used to estimate the percentage of Carbon and Hydrogen in a compound. The apparatus consists of a combustion tube, a delivery tube, a Liebig condenser, and absorption tubes containing appropriate reagents. The formula to find the percentage of Carbon is:

Percentage of Carbon = (Volume of CO2 × 12) / (Weight of the compound)

Similarly, the formula to find the percentage of Hydrogen is:

Percentage of Hydrogen = (Volume of H2O × 2) / (Weight of the compound)

(b) The inductive effect refers to the electron-donating or withdrawing effect of a substituent group on a neighboring group in a molecule. On the other hand, the electromeric effect involves the shift of a shared pair of electrons towards one of the atoms as a result of the complete transfer of π or double bond electrons.


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User G S
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