Question

In recent times, the white color of Taj Mahal in Agra is changing to ______ due to deposition of ______.

• A. Black, emission from vehicles
• B. Yellow, salts
• C. Brown, iron oxides
• D. violet, emission from vehicles

Answer 1

Answer: (A), (B), (C)

The correct options are
A Black, emission from vehicles
B Yellow, salts
C Brown, iron oxides

Taj Mahal is turning black due to black carbon due to unburnt carbon particles emitted by the vehicles. The outer surface of the Taj turning yellow is mostly due to atmospheric pollution and also due to excessive presence of sulphur dioxide in the air. The brown blotches can be seen due to iron used in repairing work.