MEDIUM
10th CBSE
IMPORTANT
Earn 100
A piece of granulated zinc was dropped into a copper sulphate solution. After some time, the colour of the solution changed from:
50% studentsanswered this correctly
Important Questions on Multiple Choice Questions(MCQ's)
MEDIUM
10th CBSE
IMPORTANT
When sulphur dioxide gas is passed through acidified potassium dichromate solution, the colour of the solution changes from:
MEDIUM
10th CBSE
IMPORTANT
The odour of ethanoic acid resembles with:
EASY
10th CBSE
IMPORTANT
Which one of the following solutions would you see to test the pH of a given sample?
MEDIUM
10th CBSE
IMPORTANT
mL of dilute acetic acid was added to mL of water and the mixture was shaken for one minute. It was observed that:
HARD
10th CBSE
IMPORTANT
Four setup as given below were arranged to identify the gas that evolved when diluting hydrochloric acid was added to zinc granules. The most appropriate set-up is:
HARD
10th CBSE
IMPORTANT
Which two equipments would you choose to prepare and collect sulphur dioxide gas in the laboratory?
MEDIUM
10th CBSE
IMPORTANT
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:
HARD
10th CBSE
IMPORTANT
The 'set up', used in the laboratory, to collect sulphur dioxide, is that shown in the figure:
