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Complete the chemial equation: Ca(3)(...

Complete the chemial equation:
`Ca_(3)(PO_(4))_(2) + SiO_(2) + C overset("heat")to`

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`2Ca_(3)(PO_(4))_(2) + 6SiO_(2) + 10Coverset("heat")to 6CaSiO_(3) + P_(4) + 10CO`
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CHHAYA PUBLICATION-P-BLOCK ELEMENTS-VERY SHORT ANSWER TYPES (VSA )
  1. Write the reaction between calcium cyanamide with steam.

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  2. Which compound reacts with NH(3) to give black precipitate ?

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  3. Complete the chemial equation: Ca(3)(PO(4))(2) + SiO(2) + C overset...

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  4. Distingusih between HN(3) and NH(3).

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  5. Give two example of non-aqueous solvents.

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  6. Write down the name of a nitrogenous fertilize.

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  7. Which nitrogenous gas is used in the perparation of nitric acid ...

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  8. How can it easily proved that ammonia is alkaline in nature ?

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  9. What is obatined when excess of ammonia solution is added to a C...

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  10. BH(4)^(-) and NH(4)^(-) ions are isolobal - explain.

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  11. What happens when a mixture of (NH(4))(2)SO(4) and NaNO(3) is heate...

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  12. Nitrous acid behave as an oxidant as well as a reductant - why ?

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  13. Arrange N(2)O(5), N(2)O(3) and N(2)O(4) in the order of increasing...

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  14. Among the group - 16 elements ,which one is a typical metal and ...

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  15. Which elements are also known as chalcogens ? Why ?

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  16. Name the two elements of group -16 which are metalloids and phot...

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  17. Out of N and O which one has a higher Delta(i) H(l) ? Why ?

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  18. Which one of the group - 16 elements has the lowest negative elec...

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  19. Out of CS(2) and Cse(2) which one less stable ? Why ?

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  20. Sulphur has a stronger tendency for catenation than oxygen - why ...

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