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UNITED BOOK HOUSE-HIGHER SECONDARY EXAMINATION 2017-EXERCISE
- A U-tube is completely filled with Fe(OH)3 sol and a potential differe...
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- Define heterogeneous catalysis with an example.
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- How will you distinguish chemically between HN3 and HN3 ?
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- Writ down the balanced chemcial equation for the reaction of H2S with ...
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- Explain why Cu(NH(3))4]^(2+) ion is coloured but [Cu(CN)4]^(3-) ion is...
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- What are the two monomer units of terylene? Write the repeating unit o...
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- What is the ferromagnetic substance?
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- KBr crystallises in face-centered cubic (fcc) crystals. The density an...
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- Which kind of defect in ionic crystals does not alter the density ?
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- An element X has atomic mass 60 g mol^(-1) and density 6.23 g cm^(-3)....
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- 20 g of a solid solute is dissolved in 180 g of water. At 100^(@)C the...
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- What is the fuel cell? Write down anodic reaction and cathodic reactio...
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- Define specific conductivity ?
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- A current of 35 ampere is passed through acidulated water for 5 minute...
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- Write self-reduction process with balanced chemical reaction in the ex...
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- A green oxide of chromium(A), on fusion with KOH and KNO3 gives a yell...
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- Comparing La(OH)(3) and Lu(OH)(3), which is more basic and explain why...
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- Write the IUPAC name mentioning R/S notation of the following compound...
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- Write the reagent in case of first reaction and the organic product in...
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- Write one use of dichloromethane and one harmful effect of it on human...
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