JEE Main 2014 · 6 Apr · Shift 1 · Chemistry Q46

ChemistrySingle correct+4 / -1Question 46 of 90

The correct statement for the molecule, $\ce{CsI3}$ , is :

it is a covalent molecule.

it contains

\ce{Cs+}

and

\ce{I3-}

ions.

it contains

\ce{Cs^3+}

and

\ce{I-}

ions.

it contains

\ce{Cs+}

\ce{I-}

and lattice

\ce{I2}

molecule.

Answer and worked solution

Official answer: B

Cs is too electropositive to be +3, and $\ce{I3-}$ is a stable linear polyhalide ion. So $\ce{CsI3}$ is $\ce{Cs+}\,\ce{I3-}$ .

JEE Main 2014 · 6 Apr · Shift 1, Chemistry question 46