Classroom Teacher Interview Questions and Answers

Chlorine gas reacts differently with cold and hot alkali.

• Chlorine gas reacts with cold alkali to form hypochlorite and chloride ions.

• With hot alkali, it reacts to form chlorate and chloride ions.

• The reaction with hot alkali is more vigorous than with cold alkali.

• Chlorine gas is a strong oxidizing agent and can react with many substances.

The distance between nearest THV varies depending on location and type of THV.

• THV stands for Transcatheter Heart Valve.

• The distance between nearest THV can range from a few millimeters to several centimeters.

• The distance can be measured using imaging techniques such as echocardiography or CT scans.

• Factors that affect the distance include the size and position of the THV, as well as the anatomy of the patient's heart.

• For example, in a patient with a small aortic annulus, the T...read more

Yes, red phosphorous can react with alkali.

• Red phosphorous can react with strong alkalis like sodium hydroxide or potassium hydroxide.

• The reaction produces phosphine gas and the corresponding salt of the alkali metal.

• The reaction is exothermic and can be dangerous if not carried out properly.

• Red phosphorous is often used in the production of methamphetamine, where it is reacted with alkalis to produce phosphine gas.