General Knowledge - General Science

Exercise : General Science - Elements and Metals
41.
What is laughing gas?
Nitrous Oxide
Carbon monoxide
Sulphur dioxide
Hydrogen peroxide
Answer: Option
Explanation:
No answer description is available. Let's discuss.

42.
Actinides are the elements with atomic numbers from
97 to 104
101 to 115
89 to 103
36 from 43
Answer: Option
Explanation:
No answer description is available. Let's discuss.

43.
The two elements that are frequently used for making transistors are
boron and aluminium
silicon and germanium
iridium and tungsten
niobium and columbium
Answer: Option
Explanation:
No answer description is available. Let's discuss.

44.
The filament of an electric bulb is made of
tungsten
nichrome
graphite
iron
Answer: Option
Explanation:
No answer description is available. Let's discuss.

45.
Diamond is an allotropic form of
germanium
carbon
silicon
sulphur
Answer: Option
Explanation:
No answer description is available. Let's discuss.