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371.

CO is poisnous gas, antidote for CO poisoning is

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In graphite carbon atom is sp² hybridised and has a delocalised $π$ -electron cloud responsible for its high electrical conductivity.

373.

Hydrolysis of (CH₃)₂SiCl₂ and CH₃SiCl₃ leads to:

374. Why are pentahalides more covalent than trihalides?

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375. Why is BiH₃ the strongest reducing agent amongst all the hydrides of Group 15 elements?

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376. Why is N₂ less reactive at room temperature?

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377. Mention the conditions required to maximise the yield of ammonia.

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378. How does ammonia react with a solution of Cu²⁺?

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379. What is the covalency of nitrogen in N₂O₅?

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380. Bond angle in PH₄⁺ is higher than that in PH₃. Why?

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