Question
Which of the following is the laughing
gas?Solution
Nitrous oxide is used as a laughing gas. Nâ‚‚ O is the chemical formula of nitrous oxide. Nitrous oxide, commonly known as laughing gas is a chemical compound, an oxide of nitrogen with the formula N and O. At room temperature, it is a colorless NON INFLAMMABLE GAS, with a slight metallic scent and taste. At elevated temperatures, nitrous oxide is a powerful oxidizer similar to molecular oxygen. Hence, option A is correct.
A boat takes 2 hours 20 minutes to cover 140 km downstream and 2.5 hours to cover 75 km upstream. If the boat covers 'y' km upstream and '2y' km downstr...
- The downstream and upstream speeds of a boat are 36 km/hr and 28 km/hr, respectively. If the boatman covers (x + y) km upstream in 8 hours while the stream...
A boatman takes 10 hours to travel 360 km downstream and 15 hours to cover the same distance upstream. How much time would it take for the boatman to tr...
A boat's speed in still water allows it to cover 120 km in 8 hours. The current's speed is 20% of the boat's speed. How long will it take the boat to tr...
- A boat moves with a downstream speed that is 8 km/hr more than its upstream speed. If the boat’s speed in still water exceeds the current’s speed by 12...
- A boat sails 180 km downstream and half of that distance upstream in 12 hours. If the stream’s speed is 50% less than that of the boat in still water, de...
Ratio of distance covered by boat in upstream to downstream is 4:3. Time taken in downstream and upstream is 2hr and 4 hr respectively. If speed of boa...
A man rows upstream 10 km and downstream 15 km taking 5 hours each. Find the man’s speed in still water.
...A submarine can navigate 112 km upstream and 130 km downstream, and it takes a total of 8 hours and 6 minutes to complete this journey. Now, the task is...
Speed of a boat in still water to speed of boat in upstream is 13:10. If the boat can travel 320 km in downstream in 5 hours, then find the time taken b...