1.

In the systemLaCI_3 (s) +H_2O(g) +"Heat" to LaCIO(s) +2HCI(g), equilibrium is established . More water vapour is added to re-establish the equilibrium . The pressure of water vapour is doubled . The factor by which pressure of HCI is changed is

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2
`SQRT2`
`SQRT3`
`SQRT5`

Answer :B


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