Organic Chemistry — Chemistry STD 10 — Question

Distinguish between the following pair of compound using the test given within bracket.
Iron (II) Sulpate an and iron(III) using ammonium hydroxide)

Give reason for the following:
Brisk effervescence is seen when oil of vitriol is added to sodium carbonate.

Why do the molecules of hydrogen and chlorine have single covalent bond between their atoms? Show its electron dot arrangement.

In a group, a particular element has the lowest ionization potential; does it ionize most easily or least easily? Explain with example.

Explain, why during the electrolysis of copper sulphate using copper electrodes, the colour of solution does not fade?

Explain and give reasons why aluminium vessels should not be cleaned with powders containing alkalis ?

Define the following and give two examples in case a normal salt .

what is the function of cryolite in the extraction of aluminium, other than acting as a solvent for bauxite?

If 100 cm³ of oxygen contains Y molecules, how many molecules of nitrogen will be present in 50 cm³ of nitrogen under the same conditions of temperature and pressure.