Explain why the sodium extract is boiled with nitric acid before adding silver nitrate solution for detecting halogens.

White phosphorus is added to silver nitrate solution.

Reaction of silver nitrate solution with phosphorous acid produces:

CO gets readily absorbed in ammoniacal silver nitrate solution but CO_2 does not-explain.

PCl_(5) reacts with finely divided silver on heating and a white silver salts is obtaine d , which dissolved on adding excess aqueous NH_(3) solution . Write the reactions involved to explain what happens .

What happens , when silver nitrate solution is treated with hypophosophours acid.

Explain why does the colour of KMnO_(4) disappear when oxalic acid is added to its solution in acidic medium.

Explain why 1-butyne reacts with ammoniacal silver nitrate to produce a white precipitate, but 2-butyne does not.

Explain why sodium carbonate on dissolution in water gives an alkaline solution.

A compound (A) after fusion with metallic sodium gives a precipitate when silver nitrate solution is added to a portion of th filtrate acidified with nitric acid. Compound (A) is likely to be: (1) CH_(3)CH_(2)CH_(2)Br (2) CH_(3)CH_(2)CHO (3) CH_(3)CH_(2)CH_(2)OH (4) CH_(3)CH_(2)COOH

Why is it necessary to use acetic acid and not sulphuric acid for acidification of sodium extract for testing sulphur by lead acetate test?