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CO2 is a gas but SiO2 is a high melting ...

`CO_2` is a gas but `SiO_2` is a high melting solid— explain why.

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UNITED BOOK HOUSE-NAVA NALANDA QUESTION PAPER -EXERCISE
  1. Write general electronic configuration of d-block elements and f-block...

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  2. PCI5 is known but PH5 is not known— explain why.

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  3. Arrange the following ions in ascending order of their ionic radic Na^...

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  4. Calculate the average kinetic energy in joules of the molecules in 8.0...

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  5. Write the units of Vander Waals constants a and b.

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  6. An organic compound contains C, H and oxygen. 0.30 g of this compound ...

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  7. Write the IUPAC name of CH3— CO— NH2.

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  8. What is inductive effect? arrange the following groups in ascending or...

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  9. What are the species formed by homolytic cleayageof C— C bond of ethan...

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  10. CO2 is a gas but SiO2 is a high melting solid— explain why.

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  11. In a certain process. 678 J of heat is absorbed by a system, while 294...

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  12. What happens when H2O2 solution is added to KI solution containing dil...

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  13. Write down the Vaiider Waal’s equation for n moles of a gas mentioning...

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  14. Write the mathematical expression of the first law of thermodynamics e...

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  15. What is the demineralised water? Will it be suitable for solvent for m...

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  16. Write short notes on :the hyper conjugative effect.

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  17. Write short notes on :Electrometric effect.

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  18. Write down the chain structural isomers of hydrocarbon having molecu...

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  19. Analysis of a compound of phosphorous shows that 1.0 litre of it at ST...

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  20. Acidiccharacter of 4-nitrophenol is greater than 3-nitrophenol Explain...

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