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प्रश्न
Name the anion [negative ion] present in the following compound:
Compound D when warmed with dilute H2SO4 gives a gas which turns acidified potassium dichromate solution green.
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उत्तर १
Sulphuric acid, when treated with sulphites gives sulphate salts, water and sulphur dioxide gas. Sulphur dioxide turns potassium dichromate solution green. Thus, the negative ion is Sulphite ion.
उत्तर २
Compound D is Na2SO3 and anion is \[\ce{[SO^{2-}3]}\].
संबंधित प्रश्न
Write a balanced chemical equation for the following:
Action of concentrated sulphuric acid on Sulphur.
Identify the acid in the following case:
The acid which produces sugar charcoal from sugar.
Give a chemical test to distinguish between dilute sulphuric acid and conc. sulphuric acid.
Name the following :
The precipitate obtained by treating aqueous lead nitrate with dilute sulphuric acid.
How are the following conversion brought about? Give equation and condition:
Dilute sulphuric acid to hydrogen.
How are the following conversion brought about? Give equation and condition:
Oxalic acid to carbon monoxide.
Write balanced equation for the reaction of dilute sulphuric acid with the following:
Copper carbonate
Complete the following sentence, choosing the correct word from the given options.
"Concentrated sulphuric acid is used in the laboratory preparation of nitric acid and hydrochloric acid because it is ____________ in comparison to these two acids."
Give a balanced chemical equation for the action of sulphuric acid on the following:
Sulphur
Give balanced chemical equation to prepare the following salt:
Sodium sulphate using dilute sulphuric acid
