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Calcium cyanamide is used as fertilizer ...

Calcium cyanamide is used as fertilizer under the name .............

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MODERN PUBLICATION-p-BLOCK ELEMENTS-EXERCISE
  1. Among group 15 hydrides, ........... is most stable.

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  2. P4O6 and P4O10 dissolve in water to give ......... and .........

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  3. Calcium cyanamide is used as fertilizer under the name .............

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  4. The number of unpaired electron in aluminium is .....

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

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

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

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  8. Orthophosphorous acid on heating gives ......... and ...........

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  9. Draw lewis structure of Ca2+

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

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

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  12. SF6 molecule has ......................... geometry.

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

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  14. What is the composition of grapes?

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

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

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

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

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  19. HClO4 is less/more acidic than HClO3.

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  20. What are the uses of grape juice?

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