Question
Define atomic weight, molecular weight and equivalent weight and explain them.
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Answer
SELF
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1. Two liquids (A) and (B) can be separated by the method of fractional distillation. The boiling point of a liquid (A) is less than the boiling point of a liquid (B). Which of the liquids do you expect to come out first in the distillate? Explain.
2. Structures and IUPAC names of some hydrocarbons are given below. Explain why the names given in the parentheses are incorrect.
2. Structures and IUPAC names of some hydrocarbons are given below. Explain why the names given in the parentheses are incorrect.
Explain IUPAC system of nomenclature of elements with example.
What will be the pressure of the gaseous mixture when 0.5 L of $\mathrm{H}_2$ at 0.8 bar and 2.0 L of dioxygen at 0.7 bar are introduced in a 1 L vessel at $27^{\circ} \mathrm{C}$ ?
→Balance the following equations in basic medium by ion-electron method and oxidation number methods and identify the oxidising agent and the reducing agent.$N_2H_4(l) + ClO_3^-(aq) \rightarrow NO(g) + Cl^-(g)$
→Match the following equilibria with the corresponding condition.
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Column I
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Column II
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i.
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Liquid ⇌ Vapour
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a.
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Saturated solution
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ii.
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Solid ⇌ Liquid
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b.
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Boiling point
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iii.
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Solid ⇌ Vapour
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c.
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Sublimation point
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iv.
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Solute(s) ⇌ Solute (solution)
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d.
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Melting point
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e.
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Unsaturated solution
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Draw diagrams showing the formation of a double bond and a triple bond between carbon atoms in $\mathrm{C}_2 \mathrm{H}_4$ and $\mathrm{C}_2 \mathrm{H}_2$ molecules.
→Describe the types of thermodynamic systems with examples.
- Identify the oxidising agent and reducing agent in the following reactions:
- $\text{MnO}_2+4\text{HCl}\xrightarrow{ \ \ \ \ \ \ \ }\text{MnCl}_2+\text{Cl}_2+2\text{H}_2\text{O}$
- $2\text{MnO}_4^-10\text{Cl}^-+16\text{H}^+\\ \xrightarrow{ \ \ \ \ }2\text{Mn}^{2+}+5\text{Cl}_2+8\text{H}_2\text{O}$
- Calculate the oxidation number of underlined elements in the following speries.