1. Hawkers collect different types of waste papers from residences and sell to a shop.
What is called plasticity?
Write down the reactions of toluene preparation.
Write down the principle of manufacturing 2 the substance in the stem with equation.
Does recycling of the substance in environment friendly-Analyze.
2.
What is called primary reference electrodes?
Corrosion is a chemical process - Explain.
Write down half cell reaction and cell reaction of the cell in the stem.
Will the solution of anode be kept in a container of zinc for a long time - Analyze mathematically.
[EMn/Mn2+0=+1:18 V,EAV/13+0=+1.66 V and EZn/nn2+0=+0.76 V] \begin{array}{l} {\left[\mathrm{E}_{\mathrm{Mn} / \mathrm{Mn2+}}^{0}=+1: 18 \mathrm{~V}, \mathrm{E}_{\mathrm{AV} / 13+}^{0}=+1.66 \mathrm{~V}\right. \text { and }} \\ \left.\mathrm{E}_{\mathrm{Zn} / \mathrm{nn2+}}^{0}=+0.76 \mathrm{~V}\right] \end{array} [EMn/Mn2+0=+1:18 V,EAV/13+0=+1.66 V and EZn/nn2+0=+0.76 V]
3.
What is real gas?
Why HSO4− \mathrm{HSO}_{4}^{-} HSO4−is called an amphoteric substance?
Determine volume of the gas at point X \mathrm{X} X at STP in the stem.
Analyze the causes of different values of compressibility factor (Z) of gases A, B and C in the stem.
4.
What is called indicator?
ClCH2COOH \mathrm{ClCH}_{2} \mathrm{COOH} ClCH2COOH is stronger acid than CH3COOH \mathrm{CH}_{3} \mathrm{COOH} CH3COOH - Why?
How much water should be added to change the concentration of the Container-A into 0.01M \mathbf{0 . 0 1 M} 0.01M solution?
What will be the nature of mixture of A,B A, B A,B and C solutions? - Analyze mathematically.
5.
What is called e.m.f?
Fe3+ \mathbf{F e}^{\mathbf{3 +}} Fe3+ is an oxidant - Explain.
Determine concentration of H2O2 \mathrm{H}_{2} \mathrm{O}_{2} H2O2 when 25 mL 25 \mathrm{~mL} 25 mL of H2O2 \mathrm{H}_{2} \mathrm{O}_{2} H2O2 is completely oxidized by the oxidant mentioned in the stem.
Determine the amount of impurities of impure zron in the stem - Analyze mathematically.