Hydrogen Set 4

It always contains ions ✘ It is universal solvent ✘ Can dissolve covalent compounds ✘ Can conduct electricity ✔ NULL ✔ NULL NULL

✘ Hg ✘ ✘ ✔ NULL ✔ NULL NULL

Clark's method ✘ By adding washing soda ✘ Calgon process ✘ Filtration ✔ NULL ✔ NULL NULL

✘ ✘ ✘ ✔ NULL ✔ NULL NULL

Hydrogen is liberated at the cathode ✘ Hydrogen is liberated at the anode ✘ Hydride ion migrates towards cathode ✘ No reaction takes place ✔ NULL ✔ NULL NULL

Urey ✘ Aston ✘ Rutherford ✘ Chadwick ✔ NULL ✔ NULL NULL

50 ✘ 25 ✘ 6.25 ✘ 5.88 ✔ NULL ✔ NULL NULL

Number of protons ✘ Molecular weight ✘ Nature of spins of protons ✘ Nature of spins of electrons ✔ NULL ✔ NULL NULL

Acetanilide ✘ Alcohol ✘ ✘ All of these ✔ NULL ✔ NULL NULL

Insoluble impurities like silica ✘ Impurities like carbonates and bicarbonates of calcium and magnesium ✘ High density and different physical properties than those of water ✘ The capacity to expedite the rate of nuclear reactions ✔ NULL ✔ NULL NULL