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Laughing gas is obtained on heating a mi...

Laughing gas is obtained on heating a mixture of `NH_4Cl` and ......... but nitrogen gas is obtained when a mixture of `NH_4Cl` and .............. is heated.

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MODERN PUBLICATION-p-BLOCK ELEMENTS-EXERCISE
  1. The number of unpaired electron in aluminium is .....

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  2. Write balanced equations for the following : Phosphorus is treated wit...

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  3. Laughing gas is obtained on heating a mixture of NH4Cl and ......... b...

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  4. Draw lewis structure of flourine ion (F-)

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  5. Orthophosphorous acid on heating gives ......... and ...........

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  6. Draw lewis structure of Ca2+

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  7. The formula of epsom salt is................ and that of baryte is ......

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  8. Choose the correct alternative: Reducing power of hydrides of group 16...

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  9. SF6 molecule has ......................... geometry.

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  10. Nitrogen gas is obtained by heating ammonium nitrite/ammonium nitrate.

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  11. What is the composition of grapes?

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  12. In H2S2O8, the oxidation state of S is +6/+7.

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  13. The number of electrons present in M shell of aluminium is ........

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  14. The ion that is isoelectronic with CO is ............

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  15. During electrolysis of molten ICl3, both I2 and Cl2 are liberated at a...

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  16. HClO4 is less/more acidic than HClO3.

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  17. What are the uses of grape juice?

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  18. When Cl2 gas is passed through hot milk of lime, bleaching powder /cal...

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  19. HI is stronger /weaker acid than HCl.

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  20. Bleaching action of SO2 is permanent/ temporary.

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