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CHHAYA PUBLICATION-SOME p-BLOCK ELEMENTS-SOLVED WBCHSE SCANNER
- What is producer gas? Write down the reactions for the production of t...
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- How can you separate CO from a mixture of CO and CO2?
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- Write the formula of following ore: bauxite
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- Mention the use of Borax.
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- Anhydrous aluminium chloride cannot be prepared by heating hydrated al...
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- A white precipitate is formed when small amount of a gas is passed thr...
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- Name the chemicals required for preparation of CO in the laboratory. G...
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- Write the chemical equation for the manufacture of urea.
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- Write the balanced equation(s) for the reaction when excess CO2 is pas...
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- What is dry ice?
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- How is producer gas manufactured?
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- What is active charcoal? Mention one of its uses.
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- Which one is the hardest allotrope of carbon? Answer with reason.
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- Why PbO2 is oxidising?
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- Explain why TlCl is known but Al Cl is not known.
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- Which of the following is thermodynamically most stable form of carbon...
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- PbCl4 is less stable than SnCl4 while PbCl2 is more stable than SnCl2....
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- Explain why C Cl4 is not hydrolysed while SiCl4 is hydrolysed.
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- What happens when borax is heated strongly?
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- Why are the dihalides of carbon unstable but the dihalides of tin and ...
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