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QUESTION &
Q135) Which of the following pair is characterised by swollen lips, thick pigmented skin of hands and legs and irritability? [ CBSE 1993 ]

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Pellagra is characterised by swollen lips, thick pigmented skin of hands and legs and irritability.
Deficiency of Nicotinamide , Niacin (Nicotinic acid) causes Pellagra
Answer : (c)