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p-Block Elements – II — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12Chemistryp-Block Elements – II1 Mark
MCQ
Find out the incorrect pair :
  • A
    Liquid nitrogen – biological preservation
  • B
    Nitric acid – photography
  • C
    white phosphorous – yellow phosphorous
  • ✓
    phosphorous – welding
✓

Answer

Correct option: D.
phosphorous – welding
phosphorous – welding

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