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A yellow metallic powder is burnt in a s...

A yellow metallic powder is burnt in a stream of fluorine to obtain a colourless gas X which is thermally stable and chemically inert. Its molecule has octahedral geometry. Another colourless gas Y with same constituent atoms as that of X is obtained when sulphur dichloride is heated with sodium fluoride. Its molecule has trigonal pyramidal structure. X and Y are respectively of fluorine to obtain a colourless gas X which is thermally stable and chemically inert. Its molecule has octahedral geometry. Another colourless gas Y with same constituent atoms as that of X is obtained when sulphur dichloride is heated with sodium fluoride. Its molecule has trigonal pyramidal structure. X and Y are respectively

A

`SF_4 and S_2F_2`

B

`SF_6 and SF_4`

C

NaF and NaCl

D

`SF_4 and SF_6`

Text Solution

Verified by Experts

The correct Answer is:
B
`S+3F_2 " " underset("(X)Colourless gas")(SF_6)`

`SCl_2 + 4NaFoverset(24^@C)tounderset((Y))(SF_4)+S_2Cl_2+4NaCl`
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