What is the oxidation number of sulfur in dithionous acid?

How many stable isotopes does the nitrogen atom have?

What is formed when amphoteric oxides react with an alkali solution?

Which of the following noble gases is not obtained via fractional distillation?

When excess chlorine reacts with methane in presence of sunlight, which is the major product?

How many allotropes does nitrogen have?

How many moles of nitric acid is required to convert 1 mole of sulfur to sulfuric acid?

What happens to the size of atoms of elements of p-block as we move from left to right in the same period?