Cyanide poisoning occurs on exposure to a compound that produces cyanide ions when dissolved in water. The cyanide ion halts cellular respiration by inhibiting an enzyme in the mitochondria called cytochrome c oxidase. If cyanide is inhaled it causes a coma with seizures, apnea, and cardiac arrest, with death following in a matter of seconds.

Correct Option: D

Cyanide poisoning occurs on exposure to a compound that produces cyanide ions when dissolved in water. The cyanide ion halts cellular respiration by inhibiting an enzyme in the mitochondria called cytochrome c oxidase. If cyanide is inhaled it causes a coma with seizures, apnea, and cardiac arrest, with death following in a matter of seconds.

Recent research has shown that India’s groundwater faces the problem of presence of uranium, arsenic, and heavy metals in ground water used for drinking. Sorbitol (used as artificial sweetener) and Formaldehyde (used in coating, etc) are not famous as water pollutants.

Correct Option: C

Recent research has shown that India’s groundwater faces the problem of presence of uranium, arsenic, and heavy metals in ground water used for drinking. Sorbitol (used as artificial sweetener) and Formaldehyde (used in coating, etc) are not famous as water pollutants.

Chlorine is used to disinfect water and is part of the sanitation process for sewage and industrial waste. During the production of paper and cloth, it is used as a bleaching agent. It is also used in cleaning products; including household bleach which is chlorine dissolved in water Bleaching powder is an important and a commonly used bleaching agent prepared from chlorine.

Correct Option: D

Chlorine is used to disinfect water and is part of the sanitation process for sewage and industrial waste. During the production of paper and cloth, it is used as a bleaching agent. It is also used in cleaning products; including household bleach which is chlorine dissolved in water Bleaching powder is an important and a commonly used bleaching agent prepared from chlorine.

When solid Potassium Permanganate (KMnO₄) is mixed with pure glycerol or other simple alcohols, it will result in a violent combustion reaction. Potassium Permanganate is an extremely powerful oxidizer which spontaneously ignites after coming in contact with glycerol. The glycerol is oxidized so quickly that heat is generated faster than it can be dissipated. 3C₃H₅(OH)₃ + 14KMnO₄ 14 MnO₂ + 7K₂CO₃ + 2CO₂ + 12H₂O

Correct Option: B

When solid Potassium Permanganate (KMnO₄) is mixed with pure glycerol or other simple alcohols, it will result in a violent combustion reaction. Potassium Permanganate is an extremely powerful oxidizer which spontaneously ignites after coming in contact with glycerol. The glycerol is oxidized so quickly that heat is generated faster than it can be dissipated. 3C₃H₅(OH)₃ + 14KMnO₄ 14 MnO₂ + 7K₂CO₃ + 2CO₂ + 12H₂O

Photochemical smog which is mainly composed of ozone (O₃), Peroxyacetyl nitrate (PAN) and Nox, is also known as brown air where solar radiation is intense. In seasons of lesser solar radiation or areas, smog formation is incomplete and the air is referred to as grey air.

Correct Option: B

Photochemical smog which is mainly composed of ozone (O₃), Peroxyacetyl nitrate (PAN) and Nox, is also known as brown air where solar radiation is intense. In seasons of lesser solar radiation or areas, smog formation is incomplete and the air is referred to as grey air.