The night before the exam, sleep. A rested mind recalls what a tired one has only read.

Chemistry basics — quick quiz

2 JPSC CCE-pattern questions on Chemistry basics. Instant scoring and solutions, no signup — see where you stand in a few minutes.

Question 1 of 2

Easy

With reference to environmental chemistry and pollution, consider the following statements: 1. Acid rain is primarily caused by emissions of sulphur dioxide and nitrogen oxides reacting with atmospheric water. 2. Ozone in the stratosphere protects life on Earth by absorbing harmful ultraviolet radiation. 3. Catalytic converters in vehicles convert carbon monoxide and nitrogen oxides into less harmful substances. Which of the statements given above is/are correct?