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XII BOARDS PREVIOUS YEAR-XII BOARDS-[SET-I]
- A solution of CuSO(4) is electroysed for 10 minutes with a current of ...
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- Outline the principles of refining of metals by the following methods ...
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- Complete the following chemical reaction equations : (i) XeF(2)...
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- Complete the following chemical equations : (i) MnO(4)^(-) (aq) + ...
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- Which one in the following pairs undergoes S(N)1 substitution reactio...
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- Complete the follwing reaction equations : (i) (ii) CH(3)CH...
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- Name the four bases present in DNA. Which one of these is not present ...
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- Name two fat soluble vitamins, their sources and the diseases caused d...
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- Differentiate between the molecular structures and behaviour of thermo...
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- A first order reaction has a rate constant of 0.0051 min^(-1). If we b...
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- Silver crystallises with face - centred cubic unit cells .each side of...
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- A copper-silver cell is set up. The copper ion concentration in it is ...
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- Whate happens in the following activities and why? (i) An electrol...
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- Give a suitable example for each, explain the following : (i) Crysta...
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- Explain the following complexes with respect to structural shapes of u...
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- Classify the following as primary ,secondary and tertiary alcohols : ...
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- How would you account for the following : (i) Many of the transition...
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- Complete the following reaction equations: (i) R-overset(O)over...
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- Describe the following substance with one suitable expample of each t...
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- (a) Define the following terms: (i) Mole fraction (ii) Van't Hoff fa...
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