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Q.

The formula of oxide of an element is X2O5. The formula of its chloride is:



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a

X2Cl3

b

  XCl5

c

  XCl6

d

  XCl  

answer is B.

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Detailed Solution

The formula of oxide of an element is X2O5 . The formula of its chloride is XCl5.
Using the criss-cross method of finding the chemical formula  Symbols              X                       Cl
Valency               5        ×              1
Question ImageAfter cross-over valencies, the formula will be XCl5.
 
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