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Delhi Police Constable Exam Model Paper 10
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© examsnet.com
Question : 8
Total: 100
Laughing gas, used by doctors as Anaesthesia, is______
nitrogen
nitrogen oxide
nitrous oxide
nitrogen dioxi
Validate
Solution:
The correct answer is
nitrous oxide.
Laughing gas, used by doctors as anaesthesia is
nitrous
oxide
Laughing gas is a colourless and odourless sweet-smelling gas.
Nitrous oxide was discovered by Joseph Priestly in 1793.
Nitrous oxide
,
is a
chemical compound
an
oxide of nitrogen
with the
formula
N_
2
O
It is a
non-flammable
gas.
It is soluble in water.
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