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XII BOARDS PREVIOUS YEAR-XII BOARDS-Set I
- Drawn the structure of the following (i) H(2)S(2)O(7) (ii) XeF(6)
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- Calculate the degree of dissociation (alpha) of acetic acid if its mol...
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- Write the equation involved in the following reactions : (i) Wolff-K...
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- A 10% solution (by mass) of sucrose in water has freezing point of 26...
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- (a) Calculate the mass of Ag deposited at cathode when a current of 2 ...
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- (i) What type of isomerism is shown by the complex [Co(NH(3))(6)] [Cr(...
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- Write one difference in each of the following: (i) Lyophobic sol and...
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- Following data are obtained for the reaction: N(2)O(5) rarr 2NO(2) +...
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- Following compounds are given to you : 2-Bromopentane, 2-Bromo-2-met...
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- (a) Write the principle of method used for the refining of germanium ...
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- Write structures of compounds A,B and C in each of the following react...
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- Do the following conversions in not more than two steps: (i) Benzoic...
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- Write the structure of the monomers used for getting the following pol...
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- Define the following : (i) Anionic detergents (ii) Broad spectrum ...
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- Given reasion: (i) Thermal stability decreases from H(2)O " to " H(2...
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- Give reasons for the following (a) Acetylation of aniline reduces it...
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- After wathicng a programme on TV about te presence of carcinogens (can...
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- (a) Account for the following : (i) Transition metals form large num...
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- (a) (i) How is the variability in oxidation states of transition metal...
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- (a) An element has atomic mass 93 g mol^(1) and density 11.5 g cm^(-3)...
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