Chemical Bonding - Lonic and Covalent Compounds — Chemistry STD 10 — Question

The energy required to remove on electron from a natural isolated gaseous atom and convert it into a positively charged gaseous ion is called ____________ (electron affinity, ionization potential)

NaCl is used in preparation of HCl because it is _______ .

Choose the word or phrase from the bracket which correctly complete each of the following statement:
The element below sodium in the same group would be expected to have a ............... (lower/higher) electro-negativity than sodium, and the element above chlorine would be expected to have a ................. (lower/higher) ionisation potential than chlorine.

_______ lead bromide does not conduct electricity.

The colour of hydrated copper sulphate is ________. [light blue/black/white]

The _______ the concentration of an ion in a solution, the greater is the probability of its being discharged at its appropriate electrode.

The catalyst used in the conversion of ethene to ethane is commonly _______ .

__________ compounds generally are soluble in water and insoluble in organic solvents.

As we descend the electrochemical series containing cations, the tendency of the cation to get ________ (oxidised/reduced) at the cathode increases.

_______ is a non-electrolyte.