EASY
10th ICSE
IMPORTANT
Earn 100
Nitric acid and hydrogen chloride can be prepared in the laboratory by heated sodium nitrate and sodium chloride respectively with conc. . What property of concentrated sulphuric acid is in the reaction when sugar turns black in its presence ?
Important Questions on Practice Paper-7
EASY
10th ICSE
IMPORTANT
Nitric acid and hydrogen chloride can be prepared in the laboratory by heated sodium nitrate and sodium chloride respectively with conc. . What is deliquescence?
MEDIUM
10th ICSE
IMPORTANT
Nitric acid and hydrogen chloride can be prepared in the laboratory by heated sodium nitrate and sodium chloride respectively with conc. . Why concentrated nitric acid is not used for the preparation of hydrogen sulphide from sodium sulphide?
MEDIUM
10th ICSE
IMPORTANT
Nitric acid and hydrogen chloride can be prepared in the laboratory by heated sodium nitrate and sodium chloride respectively with conc. . Name drying agent for ammonia.
MEDIUM
10th ICSE
IMPORTANT
Name the gas evolved and write balanced chemical equation when ammonium dichromate is heated.
MEDIUM
10th ICSE
IMPORTANT
Name the gas evolved and write balanced chemical equation when ammonium chloride reacts with slaked lime.
MEDIUM
10th ICSE
IMPORTANT
How does ammonium hydroxide help in distinguishing between lead hydroxide and zinc hydroxide?
MEDIUM
10th ICSE
IMPORTANT
How does ammonium hydroxide help in distinguishing between lead nitrate and zinc nitrate?
MEDIUM
10th ICSE
IMPORTANT
A given greenish coloured solution A on reaction with barium chloride solution gives a white precipitate that is insoluble in all the mineral acids and another part of solution A on treating with ammonium hydroxide gives dirty green precipitate. Identify anion.
