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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2009-Multiple Choice Questions (Chemistry)
- Which of the following will decrease the pH of a 50ml solution of 0.01...
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- Equal volume of molar hydrochloric acid and sulphuric acid are neutral...
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- Hybridisation of central atom in NF(3) is
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- Of the following compounds the most acidic is
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- The half-life of a radioactive element is 10 hours. How much will be l...
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- For the Paschen series the value of n(1) and n(2) in the expression De...
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- Under which of the following conditins is the relation DeltaH= Delta E...
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- An organic compound made of C, H and N constant 20% nitrogen. Its mole...
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- In Cu-ammonia complex, the state of hybridiation of Cu^(+2) is
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- The reactin that takes place when Cl(2) gas is passed through conc. Na...
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- 'Electron'' is an alloy of
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- Blackened oilpainting can be restored into original form by the action...
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- Of the following acids the one which has the capability to form comple...
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- Atoms in a P(4) molecule of white phosphorus are arranged regularly in...
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- Which of the following statements is not correct?
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- In aluminium extraction by the Bayer process, alumina is extracted fro...
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- The addition of HBr to 2-pentene gives
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- Elthelene can be separated from acetylene by passing the mixture throu...
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- Reaction of R OH with R'MgX produces
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- In the compound HC -= C- overset(overset(CH(3))(|))(C )=CH(2) the hybr...
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