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USHA PUBLICATION-PREVIOUS YEAR QUESTION 2018-PREVIOUS YEAR QUESTION
- With an example, explain roasting.
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- 50 ml ofN/10 NaOH. solution, 100 ml of N/5NaOH solution and 500ml of N...
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- Explain why HCl is a gas and HF is a liquid at room temperature.
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- How can you convert ethanol to ethene ?
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- What are tranquilizers? Give two examples.
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- Prove that for a 1st order reaction, the time taken for 99% completion...
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- What happens when calcium açetate is dry distilled ?
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- Give two difference between crystalline and amorphous solids.
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- What are antibiotics? Writedown the name of two antibiotics.
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- Write the IUPAC name of the compounds. [Fe(CO)5]
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- Differentiate between multimolecular and macromolecular colloids.
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- Boiling point of water is 100^@C. Calculate the boiling point of an aq...
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- What is lanthanide contraction? Write any two of its consequences.
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- FeSO4, solution mixed with (NH4)2SO4, solution in 1:1 molar ratio give...
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- Why phenol is acidic in nature ?
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- Explain the Hofnann bromamide reaction with one example.
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- What are addition and condensation polymerisation? Give one example of...
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- What is a semiconductor? What aren-type and p-type semiconductors?
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- Explain why transition metal ions are usually coloured.
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- Explain the amphoteric behaviour of amino acids.
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