1.

How many of the following statement/s is/are correct? (1). For isothermal process DeltaE and DeltaH are 0. (2). On increasing temperature pK_(w) of water decreases. (3). For adiabatic process DeltaS is always 0. (4). Indicator methyl orange can be used for titration between strong acid and weak base. (5). At triple point liquid. vapour and solid state are in simultaneous equilibrium with one another. (6). DeltaH_(f)^(@) of D_(2) (gas) is zero. (7). Molal elevation constant (K_(b)) depends upon nature of solute. (8). Be does not give flame test. (9). Solubility of AgCN increases in KCN solution.

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ANSWER :6


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