Electrolysis — Chemistry STD 10 — Question

When green vitriol is distilled, it forms ________ . [sulphur dioxide/sulphuric acid]

Sodium zincate and water is obtained on reaction of __________ with concentrated caustic soda.

Whenever the gases react chemically, they do so in____________which bear a simple whole number ratio to each other and to the products, if gaseous, provided the temperature and pressure of reacting gases and products remains the same.

Ammonium chloride is a __________ salt.

There are ______ groups and ______ periods in the modern form of periodic table.

We can expect that pure water _______ normally conduct electricity.

The physical property of concentrated sulphuric acid that makes it valuable in preparing other acids is its _______ .

Initially, if the number of moles of nitrogen gas is 0.25 moles, the number of molecules of nitrogen gas is ________ (10²³/1.5 x 10²³/2 × 10²³).