There are four substances W, X, Y, and Z. The substance W is a dark violet solid having diatomic molecules. A solution of W in alcohol is used as a common antiseptic C. The substance X is a white solid which is usually recovered from seawater on a large scale. The substance Y is a white solid which is insoluble in water and used in the form of small balls for the safe storage of woolen clothes. The substance Z is yet another white solid which is used in making commonly used dry cells.(a) Name (i) W (ii) X (iii) Y and (iv) Z.(b) Out of W, X, Y, and Z, which substance/substances can undergo sublimation?(c) Which substance is organic in nature?(d) What is the name of substance C?(e) Which substance belongs to the halogen family?
(a) The names are :
(i) W is Iodine
(ii) X is Sodium chloride (common salt).
(iii) Y is Naphthalene
(iv) Z is Ammonium chloride
(b) In this ‘W’-iodine, ‘Y’-naphthalene and ‘Z’- ammonium chloride undergoes sublimation.
(c) ‘Naphthalene’ is organic in nature.
(d) The name of the substance ‘C’ is tincture iodine.
(e) Iodine belongs to the halogen family.
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