A compound of mercury used in cosmetics, in Ayurvedic and Unani medicines and known as Vermilion is :

H g C l_{2}

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H g S

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H g_{2} C l_{2}

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H g I_{2}

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Solution

The correct option is B $H g S$
Vermilion red, mercury sulphide (HgS), was one of the most important reds in art and its use as a pigment dates back to Antiquity.

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H g - C l

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Q26. Consider the following Statements regarding Indian Systems of Medicine and Homoeopathy:

1. Department of Ayurveda, Yoga and Naturopathy, Unani, Siddha and Homoeopathy (AYUSH) has been elevated to the status of Ministry of AYUSH.

2. Ayurveda, Siddha, Unani and Homoeopathy drugs are outside the purview of Drugs and Cosmetics Act, 1940.

Identify the correct statements:

K_{2} C_{2} O_{4}

H g C l_{2}

2 H g C l_{2} + K_{2} C_{2} O_{4} \to 2 K C l + 2 C O_{2} + H g_{2} C l_{2}

H g_{2} C l_{2}

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