Living in the atmosphere of CO is dangerous because it
Reduces organic matter of tissues
Dries up the blood
Combined with O2 present inside to form CO2
Combines with haemoglobin and makes it incapable of absorbing oxygen
When CO is not ventilated it binds to haemoglobin, which is the principal oxygen-carrying compound in the blood; this produces a compound known as carboxyhaemoglobin. Carbon monoxide toxicity arises from the formation of carboxyhaemoglobin, which decreases the oxygen-carrying capacity of the blood and inhibits the transport, delivery, and utilization of oxygen by the body.
What is the role of ultraviolet (UV) radiation in the water purification system?
1. It inactivates/kills the harmful micro-organisms in water.
2. It removes all the undesirable odors from the water.
3. It quickens the sedimentation of solid particles and improves the clarity of the water.
Which of the statements given above is/are correct?
2 and 3 only
1 and 3 only
1, 2 and 3
Ultraviolet (UV) is electromagnetic radiation with a wavelength ranging from 10nm to 400nm. Its wavelength is shorter than visible light but longer than X-rays. UV radiations inactivate/ kills the harmful micro-organisms in water by damaging their DNA.
A sample of chloroform before using as an anaesthetic, is tested by
Ammonical cuprous chloride
Ammonical silver nitrate solution
Silver nitrate solution after boiling with alcoholic KOH
Chloroform (CHCl3) undergoes oxidation to give phosgene (CI2CO) which is an extremely poisonous gas. Phosgene must not be present in chloroform when used as an anesthetic agent. Pure chloroform does not give white ppt with silver nitrate but it will give white ppt if phosgene is present in chloroform.
Fehling's solution and ammoniacal silver nitrate solution (also known as Follin's reagent) are used to differentiate between alcohol and lactones.
In the hooch tragedy (casualty occurring due to the wine poisoning) sometimes the incidents of blindness occur due to the poisonous substance:
In most of the hooch tragedies, methyl alcohol was used as the chief adulterant in liquor. Toxicity of methyl alcohol manifests as permanent blindness or ultimately death due to respiratory failure.
The main reasons for its use as adulterant are being a similarity in appearance and taste with ethyl alcohol and easy availability.
It is suggested by the doctors that the person suffering from prostrates in the kidney or gallbladder should not consume excessively the foodstuffs like tomatoes, eggs, milk, etc which are the major causes of the crystal formation as the prostrates, which is made of:
Prostrate in kidney or gallbladder is composed of calcium oxalate.
Which one among the following elements/ions is essential in small quantities for the development of healthy teeth but causes a mottling of the teeth if consumed in higher quantities?
Consumption of a high concentration of fluoride causes a mottling of teeth or fluorosis.
Which of the following is not included in the AYUSH Department under the Ministry of Health and Family Welfare of the Govt. of India?
AYUSH is the Department of Ayurveda. Yoga & Naturopathy, Unani, Siddha, and Homoeopathy. Allopathy is not included in this department.