Chemistry
A few drops of universal indicator are added to colourless solution A, B, C and D with pH 2, 10, 9 and 7 respectively. Which of the following test tube is labelled with incorrect colour ?
Related Questions
The drying agent used to dry Ammonia is:
- Concentrated Sulphuric acid
- Calcium oxide
- Sulphurous acid
- Calcium hydroxide
The percentage of nitrogen present in urea (NH2)2CO is: [R.A.M. of N = 14, C= 12, O = 16, H = 1]
- 23.36
- 46.67
- 19.35
- 43.87
Assertion (A): Hydrogen is a neutral gas but it cannot be dried by concentrated sulphuric acid.
Reason (R): The gas reacts with this acid.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
The organic compound prepared when calcium carbide reacts with water:
- Methane
- Ethane
- Acetylene
- Ethene