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Anthracene is purified by...

`Anthracene` is purified by

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CENGAGE CHEMISTRY ENGLISH-P-BLOCK GROUP 15 ELEMENTS - THE NITROGEN FAMILY-Exercises (Single Correct)
  1. Which of the following is coloured ?

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  2. The three electron bond is present in the structure of

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  3. Anthracene is purified by

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  4. Which of the following combines with Fe^(2+) ions to form brown comple...

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  5. Nitrogen reacts with calcium and carbon or when N2 gas is passed over ...

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  6. NH3 has pyramidal structure with HNH bond angle of 107^@ it forms comp...

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  7. NH3 is a Lewis base and is used for cooling in refrigeration is dried ...

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  8. Catalytic oxidation of NH3 (passing a mixture of NH3 and air over heat...

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  9. Ordinary strong solution of HCl, HNO3 and H2 SO4 contains roughly.

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  10. Dilute HNO3 cannot be concentrated beyond 68 % by boiling because.

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  11. Fuming HNO3 (containing 98 % of HNO3) is obtained.

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  12. Yellow colour of HNO3 is due to the presence of NO2 is removed by

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  13. Which of the following form maximum P-H bonds.

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  14. Scheel's green, formerly used as a green pigment for colouring wall pa...

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  15. PCl5 in solid state exists as.

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  16. Graham's salt used for softening of water and other alkalis used for c...

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  17. Hypophosphorous acid is

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  18. Nitrolim is

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  19. Nitrochalk is

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  20. Group 15 elements are commonly known as.

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