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Which of the following pairs of gases is...

Which of the following pairs of gases is used to prepare Holme's signals ?

A

Phosphine and acetylene

B

Phosphine and ethylene

C

Ammonia and acetylene

D

Phosphine and ammonia

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The correct Answer is:
A
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TARGET PUBLICATION-p-BLOCK ELEMENTS-CRITICAL THINKING
  1. One mole of calcium phosphide on reaction with excess of water give:

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  2. Phoshine is evolved upon heating .

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  3. Which of the following pairs of gases is used to prepare Holme's signa...

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  4. Which statement is FALSE regarding NH(3) and PH(3) ?

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  5. Among the following , the CORRECT statement is .

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  6. Bottle of PCl(3) is kept stoppered because it

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  7. When PCl(3) reacts with H(2)SO(4) , sulphuryl chloride (SO(2)Cl(2)) is...

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  8. The hybridisation undergone by P in PX(3) and PX(5) are respectively.

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  9. Which of the following statements is INCORRECT for the structure of PC...

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  10. The final product of hydrolysis of P(4)O(10) is .

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  11. Which of the following oxoacids of phosphorus contains a P-P bond?

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  12. The melting point of oxygen is very low compare to that of sulphur be...

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  13. Polonium possess lower melting and boiling points than tellurium due t...

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  14. In the compound TeF(4) , the hybridisation of Te is .

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  15. The CORRECT increasing order of dipole moments of the following is .

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  16. The number of unpaired electrons in the p-subshell of oxygen atom

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  17. it is possible to obtain oxygen from air by fractional distillation be...

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  18. Which statement is INCORRECT among the following ?

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  19. Rhombic sulphur consists of

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  20. When SO(2) is passed through acidified K(2)Cr(2)O(7) solution

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