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UNITED BOOK HOUSE-HIGHER SECONDARY EXAMINATION 2017-EXERCISE
- The process by which alum purifies turbid water is
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- Which one of the following atomic numbers is that of a lanthanoid elem...
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- Which of the following compounds most readily undergoes solvolysis by ...
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- In the solid state which of the following is the structure of alanine?
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- Which of the following is not a food preservative?
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- Mark the hydrophobic and hydrophilic parts of the following syn-thetic...
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- Atoms of which two elements among the following are of same size ? Zr,...
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- What would be the value of paramagnetic spin moment of K3[Fe(CN)6]? (A...
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- For which phenomenon colloidal particles do not settle down?
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- It 193000 coulomb of electricity is passed through a metallic wire, ho...
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- Write the appropriate Nernst equation for the following half-cell reac...
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- Write down the van't Hoff equation for osmotic pressure of a solution....
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- When urea is added to water the freezing point decreases. Explain why.
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- 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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