No student devices needed. Know more
10 questions
Which of the following is not a chemical property of acids?
Reacts with carbonate to produce salt, water and carbon dioxide
Reacts with reactive metal to produce salt and hydrogen
Reacts with metal oxide to produce salt and water
Reacts with alkali to produce salt and hydrogen
A piece of sodium metal is put into a beaker which contains 30 cm3 of water to form a solution.
Which of the following can react with the solution?
Aqueous ammonia
Potassium carbonate solution
Lithium hydrogen carbonate solution
Hydrogen chloride solution
Which observation is correct?
P: Gas bubbles released, Q: pH value = 1
P: Gas bubbles released, Q: pH value = 4
P: Solution turns cloudy, Q: pH value = 1
P: No change, Q: pH value = 4
Which substance neutralises a solution with the pH value of 4?
Distilled water
Sodium chloride
Sodium hydroxide
Dilute ethanoic acid
What is X?
Carbon dioxide
Hydrogen
Oxygen
Ammonia
Which of the following is not a chemical property of alkalis?
Reacts with ammonium salt to produce salt, water and ammonia gas
Reacts with acid to produce salt and water
Reacts with metal ion to produce insoluble metal hydroxide and cation from alkali
Reacts with metal to produce insoluble metal hydroxide and cation from alkali
Colourless gas bubbles are released when hydrochloric acid reacts with magnesium. What is the suitable test for the gas?
Test the gas with glowing wooden splinter
Test the gas with lighted wooden splinter
Test the gas with a moist red litmus paper
Flow the gas into lime water.
Which of the following is the correct ionic equation for neutralisation?
2H2+O2→ 2H2O
2H2O → 2H2+O2
H++OH−→H2O
H2O → H++OH−
Iron(III) sulphate reacts with sodium hydroxide to produce brown precipitate. What is the name of the precipitate formed?
Iron(III) sulphate
Sodium sulphate
Sodium hydroxide
Iron(III) hydroxide
Alkali reacts with ammonium salt to produce gas Y. Which of the following is correct about gas Y?
Has sweet smell
pH more than 7
brown colour gas
Turns blue litmus paper to red
Explore all questions with a free account