Podcast
Questions and Answers
Which gas is responsible for rekindling a glowing splinter?
Which gas is responsible for rekindling a glowing splinter?
- H2S
- CO2
- H2O
- O2 (correct)
What color does Cl2 turn moist blue litmus paper?
What color does Cl2 turn moist blue litmus paper?
- Green
- Red
- Blue Black (correct)
- Yellow
Which acid gas turns acidified potassium permanganate solution from pink to colorless?
Which acid gas turns acidified potassium permanganate solution from pink to colorless?
- SO2 (correct)
- NO2
- CO2
- HCl
What happens when acidic gases are passed through lime water?
What happens when acidic gases are passed through lime water?
Which gas forms a white ppt. with AgNO3 and the ppt. is soluble in NH4OH but insoluble in dilute acids?
Which gas forms a white ppt. with AgNO3 and the ppt. is soluble in NH4OH but insoluble in dilute acids?
Which cation forms a chalky white ppt. with NaOH but is soluble to form a colorless solution?
Which cation forms a chalky white ppt. with NaOH but is soluble to form a colorless solution?
What color precipitate forms when Fe3+ ions are present in a solution?
What color precipitate forms when Fe3+ ions are present in a solution?
When lead acetate paper is exposed to a gas after adding dilute H2SO4, which color change is observed?
When lead acetate paper is exposed to a gas after adding dilute H2SO4, which color change is observed?
Which ion forms a dense white fume with ammonia when reacted with MnO2 and concentrated H2SO4?
Which ion forms a dense white fume with ammonia when reacted with MnO2 and concentrated H2SO4?
What is the color of the flame when a potassium ion is tested in a flame test?
What is the color of the flame when a potassium ion is tested in a flame test?
What gas is evolved when dilute H2SO4 is added to a sulfide ion and heated?
What gas is evolved when dilute H2SO4 is added to a sulfide ion and heated?
When ammonium ions are present and alkali is added and heated, what gas is evolved?
When ammonium ions are present and alkali is added and heated, what gas is evolved?
