The appearance of yellow patches and stain on Tajmahal's marble outer covering is mainly due to ____________ acid.

$H_{2} C O_{3}$

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$H_{2} S O_{4}$

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$H_{3} P O_{4}$

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$H N O_{3}$

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Solution

The correct option is B
$H_{2} S O_{4}$

Sulphuric acid $H_{2} S O_{4}$

The Mathura refinery spewing $S O_{2}$ gets deposited on marble structure of TajMahal as dilute $H_{2} S O_{4}$ reacts with the $C a C O_{3}$ of marble and forms $C a_{2} S O_{4}$

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The discoloration of the white marble of India's iconic Taj Mahal is mainly due to ___.

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