Chemistry
Assertion (A): Dry hydrogen chloride gas is collected by the upward displacement of air.
Reason (R): Hydrogen chloride gas is lighter than air.
- 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
Related Questions
Which of the following would weigh the least?
(Atomic masses C=12, O=16, Na=23)- 2 gram atoms of oxygen
- one mole of sodium
- 22.4 litres of carbon dioxide at STP
- 6.023 x 1022 atoms of carbon
The equation below shows the reaction between element 'X' and dilute sulphuric acid.
X(s) + H2SO4 (aq.) ⟶ XSO4 (aq.) + H2 (g)
Which particles are responsible for conducting electricity in dilute sulphuric acid and compound XSO4?
- Electrons
- Only positive ions
- Only negative ions
- Both positive and negative ions
The structures of four hydrocarbons are shown below:
How many isomers of butene are there?
- 1
- 2
- 3
- 4
Element 'P' has electronic configuration 2,8,8,1. The number of chlorine atoms present in the chloride of 'P' is:
- 2
- 1
- 3
- 4