Short Answer TypeWhat is observed when a solution of sodium sulphate is added to a solution of barium chloride taken in a test tube? Write an equation for the chemical reaction involved and name the type of reaction in this case.
When sodium sulphate is added to Barium chloride it gives white ppt of barium sulphate which is insoluble in water.
Na2SO4 + BaCl2 → 2NaCl + BaSO4
It is double displacement type of reaction.
The values of current (I) flowing through a given resistor of resistance (R), for the corresponding values of potential difference (V) across the resistor are as given below:
| V (volts) | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 4.0 | 5.0 |
| 1 (amperes) | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1.0 |
Plot a graph between current (I) and Potential difference (V) and determine the resistance (R) of the resistor.
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