Greenish yellow gas which turns starch iodide paper black.

Identify the salt R from the observation Salt R is black in colour. On reacting with concentrated HCl, it liberates a pungent greenish yellow gas which turns moist starch iodide paper blue black.

Select from the list the gas that matches the description given in each case [Hydrogen , Nitrogen,Ammonia,Nitrogen dioxide, Chlorine] A greenish yellow gas that turns moist starch iodide paper blue black.

Select from the list the gas that matches the description given in each case : [Methane , Hydrogen, Nitrogen , Ammonia , Nitrogen dioxide , Chlorine] A greenish yellow gas that turns moist starch iodide paper blue black.

A gas which turns lead acetate paper black.

A sodium salt (A) is heated with cone. Sulphuric acid. The evolved gas truns moist litmus paper red and producess white fumes in contact with a glass rod moistened with ammonia solution. It also gives white precipitate when passed through AgNO_(3) solution. When the salt is heated with MnO_(2) and cone. H_(2)SO_(4) , a gas with an irritating smell is evolved which turns starch-iodide paper blue. Identify the salt and the gaseous product evolved from it. Explain your answer with relevant chemical equations.

Name the gas that turns moist starch iodide paper blue black.

Name the gas that turns moist starch iodide paper blue black.

Which of the following gas turn starch iodide paper blue ?

The gas which turns mercurous nitrate paper black is

Salt + H_(2)SO_(4) (dilute) to Coloured vapours which turns starch iodide paper blue.Identify the acid radical and the coloured vapours giving the relevant chemical equations.