${\mathrm{BrF}}_3$ or ${\mathrm{ClF}}_5$, which has bent T — shaped structure ?

Important Questions on Group 17 Elements : Halogen Family

MEDIUM

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-2>Chapter 9 - Group 17 Elements : Halogen Family>QUESTIONS>Q 21

Name two poisonous gases which can be prepared from chlorine gas.

MEDIUM

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-2>Chapter 9 - Group 17 Elements : Halogen Family>QUESTIONS>Q 1

Electron affinity of fluorine is less than that of chlorine, why ?

EASY

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-2>Chapter 9 - Group 17 Elements : Halogen Family>QUESTIONS>Q 2

What happens when $\mathrm{NaCl}$ is heated with ${\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$ and conc. ${\mathrm{H}}_2{\mathrm{SO}}_4$ ?

EASY

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-2>Chapter 9 - Group 17 Elements : Halogen Family>QUESTIONS>Q 3

Glass apparatus are not used for isolation and storing of fluorine. why ?

EASY

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-2>Chapter 9 - Group 17 Elements : Halogen Family>QUESTIONS>Q 4

Why is the boiling point of fluorine abnormally high?

EASY

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-2>Chapter 9 - Group 17 Elements : Halogen Family>QUESTIONS>Q 5

Why $\mathrm{HF}$ is a liquid whereas other hydrides of halogens are gases?

EASY

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-2>Chapter 9 - Group 17 Elements : Halogen Family>QUESTIONS>Q 6

Between the acids $\mathrm{HBr}$ and $\mathrm{HI}$ which is more easily oxidised ? Give reasons.

EASY

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-2>Chapter 9 - Group 17 Elements : Halogen Family>QUESTIONS>Q 7

Explain on the basis of electronic configuration why chlorine and fluorine are put in $17$ group of periodic table.