Ionisation Enthalpy Trend in Group 13 Elements

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What health effects can occur when the concentration of ozone rises above 100 parts per million?

Dizziness and fatigue

Skin irritation

Headache and nausea (correct)

Coughing and shortness of breath

Which element from Group 17 is noted as being fairly abundant?

Bromine

Iodine

Astatine

Fluorine (correct)

What type of bond results in the paramagnetism of S2 molecules?

Metallic bond

Ionic bond

Covalent bond (correct)

Hydrogen bond

Which gas combines very rapidly with ozone according to experiments mentioned?

Nitrogen Signup and view all the answers

Where are small quantities of fluorine found apart from minerals like ﬂuorspar and cryolite?

River water Signup and view all the answers

Which compound makes up the main component of sea water?

Sodium chloride Signup and view all the answers

What is the chemical formula of fluoroapatite as mentioned in the text?

$3Ca_3(PO_4)_2.CaF_2$ Signup and view all the answers

Which element in Group 17 is mentioned as less abundant than fluorine?

Iodine Signup and view all the answers

Which statement about the iodine oxides is correct?

They are insoluble solids and decompose upon heating. Signup and view all the answers

What is the purpose of aqua regia, formed by mixing concentrated HCl and HNO3?

It is used for dissolving noble metals like gold and platinum. Signup and view all the answers

Which trend is correct for the ionization enthalpy of Group 18 elements?

He > Ne > Ar > Kr > Xe > Rn Signup and view all the answers

Which statement about the boiling points of noble gases is correct?

They have low boiling points due to weak dispersion forces. Signup and view all the answers

Which compound is formed by the partial hydrolysis of XeF6?

XeOF4 and XeO2F2 Signup and view all the answers

Which binary fluoride of xenon is formed by the direct reaction of elements?

XeF2, XeF4, and XeF6 Signup and view all the answers

What is the trend for the electron gain enthalpy of Group 18 elements?

Ne > Ar = Kr > Xe > Rn > He Signup and view all the answers

Which element from Group 18 has the lowest boiling point among all known substances?

Helium Signup and view all the answers

Which property of helium is mentioned in the text?

It can diffuse through commonly used laboratory materials. Signup and view all the answers

What is the trend for the atomic radius of Group 18 elements?

He < Ne < Ar < Kr < Xe < Rn Signup and view all the answers