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Give suitable reason or equation for the...

Give suitable reason or equation for the following statements : Silicon dioxide is treated with HF.

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OSWAAL PUBLICATION-Sample Paper 7-Exercise
  1. Write any two similarities between Lithium and Magnesium.

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  2. What happens when CaO is heated with ammonium chloride?

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  3. Give suitable reason or equation for the following statements : Silico...

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  4. Give suitable reaction or equation for the following statements : C is...

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  5. Give suitable reason or equation for the following statements : Alumin...

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  6. Explain heterogenous mixtures Give one example

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  7. Calculate the mass of sodium acetate required to make 500 mL of 0.375 ...

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  8. The atomic number of an element is 5 and mass number is 11. Find the n...

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  9. Calculate : Frequency of yellow radiation having wavelength 5800 A^@

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  10. Write the electronic configuration of the element with Z=17

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  11. Write the electronic configuration of the element with Z=17 and predic...

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  12. Write the electronic configuration of the element with Z=17 and predic...

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  13. State Aufbau principle.

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  14. State Aufbau principle.

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  15. State Aufbau principle.

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  16. A gas occupying a volume of 100 Littres is at 20^@C under a pressure o...

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  17. State first law of thermodynamics write its mathematical form.

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  18. When liquid benzene is oxidised at constant pressure at 300 k, The cha...

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  19. Write any two factors which influences entropy.

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  20. Write the relationship between standard free energy change and the equ...

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