Question

Q.116
116. A white coloured compound 'XY' is used in photochromic lenses. Choose the incorrect statement from the following :
1. The compound 'XY' decomposes into a metal and non-metal on exposure to sunlight
2. The compound 'XY' is completely soluble in aq. ammonia solution
3. The metal part of 'XY' is grey coloured in elemental form
4. The non-metal part of 'XY' is violet coloured in elemental form

Answer 1

1. The compound 'XY' decomposes into a metal and non-metal on exposure to sunlight
2. The compound 'XY' is completely soluble in aq. ammonia solution
3. The metal part of 'XY' is grey coloured in elemental form
4. The non-metal part of 'XY' is violet coloured in elemental form