Which two equipments would you choose to prepare and collect sulphur dioxide gas in the laboratory?
Important Questions on Multiple Choice Questions(MCQ's)
An aqueous solution of zinc sulphate and iron sulphate were taken in test tubes I and II by four students A, B, C, D. Metal pieces of iron and zinc were dropped in the two solutions and observations made after several hours and recorded in the form of a table as given below:
The correct reporting has been made in observations reported by the student:
The 'set up', used in the laboratory, to collect sulphur dioxide, is that shown in the figure:
A student adds a few drops of universal indicator to a solution of dilute hydrochloric acid in the way shown here. He would observe that the colour of the solution changes from colourless to:
Four students observed the colour and the odour of acetic acid and its reaction with sodium hydrogen carbonate. They tabulated their observations as given below:
The correct set of observations is that of student:
A student takes and pieces separately in four test tubes labelled as I, II, III, and IV respectively. He adds mL of freshly prepared ferrous sulphate solution to each test tube and observes the colour of the metal residue in each case.
He would observe a black residue in the test tubes:
Four students (A), (B), (C) and (D) observed the colour and solubility of iron, sulphur, and iron sulphite in carbon disulphide. The tick mark represents 'soluble', and the cross mark represents 'insoluble' in carbon disulphide. Their observations are tabulated below:
The student, who correctly reported the observations, is a student:
A student adds a few drops of universal indicator solution to a dilute solution of sodium hydrogen carbonate taken in the test-tube. Which of the following colour would be observed?
