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How will you obtain : (A)Ammonia from ...

How will you obtain :
(A)Ammonia from quick lime (in three only)
(B)`H_(3)PO_(4)` from phosphorite (in two steps only)

Text Solution

Verified by Experts

The correct Answer is:
(A)`CaO+3Coverset(800-1000^(@)C)toCaC_(2)+CO uarr`
`CaC_(2) + N_(2) to underset(("calcium cyanamide"))(CaCN_(2)+C)`
`CaCN_(2)+3H_(2)O to CaCO_(3)+2NH_(3)`
(B)`2Ca_(3)(PO_(4))_(2) + 6SiO_(2) to 6CaSiO_(3) + P_(4)O_(10)`
`P_(4)O_(10)+6H_(2)O to 4H_(3)PO_(4)`
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RESONANCE-P BLOCK ELEMENTS-Exercise 2 part 1 SUBJECTIVE
  1. What happens when: (a)NH(4)Cl & NaNO(3) is heated strongly. , (b)(NH...

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  2. How will you obtain : (A)Ammonia from quick lime (in three only) (...

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  3. An orange solid (A) on heating gave a green residue (B), colourless ga...

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  4. What happens when ? (i)Ammonia reacts with KMnO(4) (neutral medium) ...

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  5. What happens when ? (i)Aqeous solution of NaNO(3) is heated with zin...

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  6. Write down a reaction showing action of N(2)O(4)(l) as non-aqueous sol...

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  7. Give the equations for preparation of : (A)Nitrolim. (B)Phosphine ...

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  8. A waxy crystalline solid (A) with a garlic odour is obtained by burnin...

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  9. Identify (A) to ( E). (a) An inorganic iodide (A) on heating with a ...

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  10. Complete and balance the following : (i)P(4)O(10)+PCl(5)to (ii)NH(3)...

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  11. In the following equation : A + 2 B + H2 O rarr C + 2 D A = HNO2, ...

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  12. What happens when : (a)K(2)Cr(2)O(7) (b)Silent electric discharge ...

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  13. What do you understand by talling of mercury ?

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  14. From the reactions given below. Identify (A),(B),( C) and (D) and writ...

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  15. Complete the following equations (i)I(2)+O(3)+H(2)O to HIO(3)+….. , ...

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  16. What happens when (i)Hydrogen sulphide is bubbled through an aqueous...

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  17. Draw the structures of following acid. (a)Marshall's acid , (b)Ditho...

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