Electric bulb filament is made of__________?
Correct answer: D. Tungsten
- A. Copper
- B. Aluminum
- C. Lead
- D. Tungsten
Explanation
Tungsten is used for bulb filaments because it has a very high melting point and can glow at high temperature without melting rapidly. Students may choose copper because it conducts electricity well, but copper would melt or soften at the filament temperature.
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About Electronic Structure of d-Block Elements
The electronic structure of d-block elements covers the filling of the (n-1)d and ns orbitals, general electronic configurations, and the exceptions shown by chromium and copper. It explains how partially filled d orbitals produce variable oxidation states, coloured ions, magnetic behaviour and complex formation, while distinguishing transition elements from elements with completely filled d subshells.
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531 free Transition Elements MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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