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In modern proces, white phosphorus is ma...

In modern proces, white phosphorus is manufactured by :

A

heating a mixture of phosphorite mineral with sand and coke in an electric furnace

B

heating calcium phosphate with lime

C

heating bone ash with coke

D

heating phosphate mineral with sand

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The correct Answer is:
A
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RESONANCE-NITROGEN & OXYGEN FAMILY-Exercise 1 (Part-II : Only one option correct type)
  1. Which of the following is least reactive?

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  2. Nitrogen is obtained by the thermal decomposition of :

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  3. In modern proces, white phosphorus is manufactured by :

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  4. The oxidation states of sulphur in the anions SO(3)^(2-), S(2)O(4)^(2-...

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  5. Correct statement about allotropy of sulphur is:

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  6. The nitrogen atom may complete its octet in several ways. Which one is...

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  7. underset("Ammonium")(NH(4)^(+)), underset("Ammonia")(NH(3)), underset(...

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  8. How many P = O bonds are present in (HPO(3))(3) ?

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  9. The correct order of sulphur - oxygen bond energy in S(2)O(3)^(2-), SO...

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  10. Which of the following bonds has the highest energy?

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  11. The wrong statement about N(2)O is :

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  12. The hydribes of group 15 elements act as :

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  13. The basic strength of the hydrides of group 15 elements :

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  14. Ammonium salts decompose quite readily on heating : (i) Ammonium sal...

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  15. Which of the following does not give oxygen on heating?

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  16. Red and white phosphorus will differ but not in:

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  17. Which of the following is incorrect ?

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  18. P(4) + NaOH overset("warm")rarr Products Products will be :

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  19. Hydrolysis of Nitride of s-Block elements (for e.g. Ba(3) N(2), Ca(3)N...

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  20. The correct order of thermal stability of hydrides of group 15 is

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