chemistry of Group13,14,15,16,17 elements

Which of the following order is correct regarding Electron affinity

• F>Cl>Br>I

• I>Br>Cl>F

• Cl>F>Br>I

• F=Cl>Br>I

Which of the following order is correct regarding First ionisation enthalpy

• B<C<N<O

• B<C<N>O

• B>C>N>O

• B<C<N=O

The oxidation state of oxygen in OF₂

• -2

• -1

• +1

• +2

Which of the following is an amphoteric oxide

• Pb₃O₄

• Na₂O

• K₂O₂

• Al₂O₃

Which of the following is not a basic oxide

• K₂O

• CaO

• Cs₂O

• N₂O₅

The central atom in interhalogen compound BrF,BrCl respectively

• Br,Cl

• F,Cl

• Br,Br

• F,Br

The hybridization of Boran and Nitrogen atoms in inorganic benzene respectively

• ^{Sp2 , Sp2}

• Sp² , Sp³

• Sp³ , Sp³

• Sp³ , Sp²

Which of the following is an Inorganic graphite

• B₃N₃H₆

• (BN)_x

• H₃BO₃

• B₂O₃

The correct order of Catenation property

• C<Si<Ge<Sn<Pb

• C>Si>Ge=Sn

• C>Si>Ge<Sn<Pb

• Si>C>GeSn

Which of the following is wrong pair

• Haber process - Ammonia

• Contact process - H₂SO₄

• Ostwald's process - Nitric acid

• None