Question : Supersonic jets cause thinning of which layer?
Option 1: O2 layer
Option 2: O3 layer
Option 3: CO2 layer
Option 4: SO2 layer
Correct Answer: O3 layer
Solution : The correct option is the O3 layer.
The O3 layer gets thin as a result of supersonic planes, particularly those operating in the stratosphere. This is caused by nitrogen oxides that are released from supersonic aircraft engines. These nitrogen oxides can catalytically destroy ozone molecules once they get to the stratosphere, which lowers the amount of ozone there.
Application | Eligibility | Selection Process | Result | Cutoff | Admit Card | Preparation Tips
Question : Water gas is the combination of:
Option 1: CO and H2
Option 2: CO2 and H2
Option 3: CO and H2O
Option 4: CO2 and CO
Question : Which of the following is not a neutral oxide?
Option 1: N2O
Option 2: Na2O
Option 3: NO
Option 4: CO
Question : In Aqua Regia which two acids are mixed in 1:3?
Option 1: HNO3 and HCl
Option 2: HNO3 and H2SO4
Option 3: HNO3 and H2CO3
Option 4: HCl and H2CO3
Question : Which of the following is the formula of barium peroxide?
Option 1: Ba2O2
Option 2: BaSO4
Option 3: BaO
Option 4: BaO2
Question : In which of the following ions, the colour is not due to d-d transition?
Option 1: [Ti(H2O)6]+3
Option 2: CoF63−
Option 3: MnO4−
Option 4: [Cu(NH3)4]2+
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile