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XII BOARDS PREVIOUS YEAR-XII BOARDS-CHEMISTRY (Theory) [SET - I]
- What is Tollen's reagent? Write one usefulness of this reagent.
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- What are reducing and non-reducing sugars ? What is the structural fea...
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- How can you describe the designation 6, 6, mean in the name nylon -6, ...
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- Define the terms, 'osmosis' and 'osmotic pressure'. What is the advant...
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- Express the relation among cell constant , resistance of the solution ...
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- Given that the standard electrode (E^(@)) of metals are : K^(+)//K=-...
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- Describe the following : (i) Tyndall effect (ii) Shape-selective c...
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- What is meant by coagulation of a colloidal solution? Name any method ...
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- Complete the following reactions (i) C(2)H(5)OC(2)H(5)+HCl to (ii...
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- Draw the structural formulae of the following compounds : (i) H(4)P(...
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- Give the chemical tests to distinguish between the following pairs of ...
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- Identify A and B in each of the following processes : (i) CH(3)CH(2...
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- Draw the structures of the monomers of the following polymers: (i) Po...
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- The density of copper metal is 8.95" g "cm^(-3). If the redius of copp...
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- What mass of NaCl ("molar mass" =58.5g mol^(-1)) be dissolved in 65g o...
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- Describe the role of the following : (i) NaCl in the extraction of ...
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- Describe the principle involved in each of the following processes of ...
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- Why is europium (II) more stable than cerium (II) ?
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- Explain the mechanism of S(N^(1)) and S(N^(2)) reactions with examples...
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- How would you convert the following : (i)Phenol to benzoquinone (i...
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