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The number of unpaired electron in alumi...

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

A

0

B

1

C

2

D

3

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MODERN PUBLICATION-p-BLOCK ELEMENTS-EXERCISE
  1. P4O6 and P4O10 dissolve in water to give ......... and .........

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

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

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

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

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

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  7. Orthophosphorous acid on heating gives ......... and ...........

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  8. Draw lewis structure of Ca2+

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

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

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  11. SF6 molecule has ......................... geometry.

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

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  13. What is the composition of grapes?

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

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

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

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

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  18. HClO4 is less/more acidic than HClO3.

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  19. What are the uses of grape juice?

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

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