Periodic Properties And Variation Of Properties Physical And Chemical — Chemistry STD 10 — Question

The ions which discharge on the positive electrode during electrolysis ____________electrons. Thus, the ions are said to be _____________.

 

A solution of hydrogen chloride gas in water conducts electricity because _______ but a solution of hydrogen chloride gas in toluene does not conduct an electric current because _______ .

Avogadro's number is equal to ________.

As we descend the electrochemical series containing cations, the tendency of the cations to get _______ at the cathode increases.

The colour of stain produced by the sulphuric acid on skin is ________ . [Black/yellow]

The traces of hydrochloric acid are present in ________.[pancreatic juice/Gastric juice]

The nature of bond in compounds of alkali and alkaline earth metals is __________.

A compound conducts electricity in the fused state. The compound is made-up of __________.

A thermite mixture contains iron (III) oxide and aluminium in which ________ [aluminium/iron (III) oxide] is higher in ratio.