Question

Phosgene and Phosphine both are poisonous. If true enter 1, else enter 0.

Answer 1

Phosphine appears as a colourless gas with a disagreeable odour of fish or garlic. Its Boiling point is ${126^0}F$ and it has a freezing point of $- {209^0}F$. It is very toxic by inhalation at extremely low concentrations.

Complete step by step answer:
Phosphine is a colourless, flammable, and explosive gas at ambient temperature that has the odour of garlic or decaying fish. Small amounts occur naturally from the breakdown of organic matter. It is slightly soluble in water. Phosphine is used in semiconductor and plastics industries, in the production of a flame retardant, and as a pesticide in stored grain.
Phosgene is highly toxic gas at room temperature. The chemical compound with the formula $COC{l_2}$ ​. This colourless gas gained infamy as a chemical weapon during World War I where it was responsible for about $85\%$ of the 100,000 deaths caused by chemical weapons.
Prolonged heating may cause containers to rupture violently and rocket.
Rate of onset: Immediate & Delayed (Lungs)
Persistence: Minutes – hours
Odour threshold: 0.9 ppm
Source/use/other hazard: Insecticide; used in manufacture of flame retardants and incendiaries.
Phosphine $P{H_3}$ is also a toxic gas.

Hence, the given statement is true. Therefore, we will enter 1.

Note: Phosphine is used as an insecticide for the fumigation of grains, animal feed, and leaf-stored tobacco. Acute (short-term) inhalation exposure to phosphine may cause headaches, dizziness, fatigue, drowsiness, burning substernal pain, nausea, vomiting, cough, laboured breathing, chest tightness, pulmonary irritation, pulmonary edema, and tremors in humans. Convulsions may ensue after an apparent recovery.