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P BLOCK GROUP 17

Total questions: 69

Worksheet time: 44mins

Name
Class
Date
1.

Which Among the following is radioactive?

a)

Fluorine

b)

Chlorine

c)

Bromine

d)

Iodine

e)

Astatine

2.

Halogens have smallest atomic radii in their respective periods because of

(a)  

3.

Ionisation enthalpy of group 17 is

a)

Very high due to little tendency to lose electron

b)

Very high due to high tendency to lose electron

c)

Very low due to little tendency to lose electron

d)

Very low due to high tendency to lose electron

4.

Halogens have maximum negative electron gain enthalpy in their respective periods.

a)

True

b)

False

5.

Negative electron gain enthalpy of fluorine is less than that of chlorine

a)

False

b)

True

6.

Halogens are coloured due to

a)

Halogens are colourless

b)

They belong to transition elements

c)

Absorption of radiation in visible region

d)

They react with each other

7.

Large electron-electron repulsion among lone pairs of fluorine than chlorine results in the anomaly in enthalpy of dissociation that is F-F (a)   Cl-Cl

8.

Fluorine is the strongest oxidising agent because

a)

Readily gives away an electron

b)

Readily accepts an electron

9.

Oxidation number(s) exhibited by fluorine is/are

a)

-1 only

b)

-1,+1,+7

c)

+1 only

d)

+7,+3,+5

10.

The oxidation states _ and _ occur in the oxides and oxoacids of fluorine and chlorine.

(a)  

11.

Reactivity of halogens

a)

Increases down the group

b)

Remains the same

c)

Decreases down the group

12.

Fluorine can oxidise

a)

Iodine only

b)

Bromine and iodine

c)

Fluorine itself

d)

Chlorine, bromine and iodine

13.

Chlorine can oxidise (accept electrons from the other element)

a)

Bromine and iodine

b)

Iodine only

c)

Bromine only

d)

Fluorine, bromine and iodine

14.

The oxidising ability of the halogens in aqueous solution ________

a)

Increases

b)

Decreases

c)

Decreases and gradually increases

d)

Increases and then remains constant

15.

Anomalous properties of fluorine like higher ionisation enthalpy, electro negativity and electrode potentials and lower ionic and covalent radii is due to

a)

Small size

b)

High F-F bond dissociation enthalpy

c)

Absence of d orbital

d)

Highest electronegativity

e)

Low F-F bond dissociation enthalpy

16.

Reactions of fluorine are __________ due to _________.

a)

Exothermic/ large and weak bond formed by it with other elements

b)

Endothermic/ large and weak bond formed by it with other elements

c)

Exothermic/ small and strong bond formed by it with other elements

d)

Endothermic/ small and strong bond formed by it with other elements

17.

Due to high electronegativity and small size, the only oxoacid fluorine forms is Hypofluorous acid. It’s formula is

a)

HOF2

b)

HO3F2

c)

H2OF

d)

HOF

18.

Choose the correct statements about hydrogen halides

a)

Hydrogen fluoride is a gas, while the other hydrogen halides are solids

b)

Hydrogen fluoride is a liquid, while the other hydrogen halides are gases

c)

Hydrogen fluoride is a gas, while the other hydrogen halides are also gases

d)

Hydrogen fluoride is a liquid, while the other hydrogen halides are solids

19.

Affinity towards hydrogen in halogens _________ down the group

a)

Decreases

b)

Increases

20.

H-F>H-Cl>H-Br>H-I. The stability of hydrogen halides decreases down the group due to

a)

Increase in bond dissociation enthalpy

b)

Decrease in bond dissociation enthalpy

c)

Varied values of bond enthalpy without a pattern

d)

Bond enthalpy is not a factor to be considered

21.

Choose the most acidic hydrogen halide

a)

H-F

b)

H-Cl

c)

H-Br

d)

H-I

22.

Which of the following compound is created using deacon’s process?

a)

Phosphorus

b)

Ozone

c)

Ammonia

d)

Chlorine

23.

Which one of the following iodine oxide is a very good oxidising agent and used in the estimation of carbon monoxide?

a)

I2O5

b)

I2O4

c)

I2O7

24.

Pick the oxides formed by fluorine

a)

OF2

b)

O2F3

c)

O2F2

d)

OF4

25.

Which of the following oxygen fluoride is thermally stable at 298k?

a)

OF2

b)

O2F2

26.

O2F2 can oxidise plutonium to (a)  

27.

Choose the right order of stability of oxides formed by halogens

a)

Cl<Br<I

b)

Br<Cl<I

c)

Cl>Br>I

d)

Br>Cl>I

28.

Choose the correct options about chlorine oxides

a)

Chlorine oxides are Cl2O, ClO2, Cl2O6, Cl2O7 and are reducing agents, tend to explode

b)

Chlorine oxides are Cl2O, ClO2, Cl2O6, Cl2O4 and are oxidising agents and tend to explode

c)

Chlorine oxides are Cl2O, ClO2, Cl2O6, Cl2O7 and are oxidising agents And tend to explode

d)

Chlorine oxides are Cl2O, ClO2, Cl2O6, Cl2O7 and are oxidising agents And do not explode

e)

Chlorine oxides are ClO, ClO2, Cl2O6, Cl2O7 and are oxidising agents And do not explode

29.

Which of the following chlorine oxide is used as bleaching agent in paper and textile industry?

a)

Cl2O

b)

Cl2O6

c)

Cl2O7

d)

ClO2

30.

List out the bromine oxides (3)

(a)  

31.

Least stable halogen oxide among the following is

a)

Iodine oxides

b)

Bromine oxides

c)

Oxygen fluorides

d)

Chlorine oxides

32.

Iodine oxides are

a)

I2O4

b)

I2O5

c)

I2O7

d)

IO2

e)

I2O6

33.

Ionic character of metal halides decreases in the order

a)

MF>MCl>MBr>MI

b)

MF<MCl<MBr<MI

34.

Choose the right options in terms of metal halides

a)

Ionic character decreases down the group

b)

Halides of higher oxidation states are less table than lower oxidation states

c)

Halides of higher oxidation states are more stable than halides of lower oxidation states

d)

SnCl4 is more stable than SnCl2

e)

UF4 is more stable than UF6

35.

Chlorine was discovered in the year 1774 by Scheele by the action of

a)

HCl on MnO2

b)

HCl on MnO4

c)

HCl passing through conc. H2so4

36.

Sodium chloride + manganese dioxide + sulphuric acid gives

a)

Oxygen

b)

Hydrogen

c)

Sulphur

d)

Chlorine

37.

Potassium permanganate which is purple in color reacts with hydrogen chloride to give

a)

Chlorine

b)

Potassium

c)

Manganese

d)

Hydrogen

38.

In Deacon’s process, Cl2 is obtained by the oxidation of HCl gas by atmospheric oxygen in presence of which catalyst?

a)

CCl4

b)

CO2

c)

CuCl2

d)

CuBr2

39.

Choose the right answer with respect to electrolysis of brine solution

a)

Sodium gas is liberated at cathode

b)

Sodium gas is liberated at anode

c)

Chlorine gas is liberated at cathode

d)

Chlorine gas is liberated at anode

40.

What is the color of chlorine gas?

(a)  

41.

Is chlorine gas soluble in water?

a)

Yes

b)

No

c)

Partially soluble

d)

Soluble only at low temperatures

e)

Soluble only at high temperatures

42.

Which of the following uses regarding chlorine are true?

a)

Bleaching wood pulp, cotton and textiles

b)

Extraction of gold and platinum

c)

Sterilising drinking water

d)

To prepare phosgene, tear gas, mustard gas

e)

For extracting glue

43.

Chlorides react with metals and non metals to form (a)  

44.

Chlorine reacts with compounds containing hydrogen to form _____

a)

HOCl

b)

HCl

c)

H2Cl2

d)

Chlorine do not react with hydrogen

45.

Choose the right statement

a)

Chlorine reacts with excess ammonia to form NH4Cl

b)

Excess Chlorine reacts with ammonia to form NH4Cl

c)

Chlorine reacts with excess ammonia to form NCl3

d)

Excess Chlorine reacts with ammonia to form NCl3

46.

Choose the right statements with respect to reaction of chlorine with hydrocarbons.

a)

With saturated hydrocarbons, chlorine gives substitution reaction

b)

With saturated hydrocarbons, chlorine gives addition reaction

c)

With unsaturated hydrocarbons, chlorine gives substitution reaction

d)

With unsaturated hydrocarbons, chlorine gives addition reaction

47.

Formula of slaked lime is

(a)  

48.

Chlorine water on standing slowly decomposes to

a)

Hypochlorous acid (HOCl)

b)

Chlorous acid (HOClO)

c)

Chloric acid(HOCl2)

d)

Perchloric acid (HOCl3)

49.

Chlorine is a good bleaching agent due to its oxidising properties. Choose the right answer(s) with respect to this property

a)

Cl2 oxidise ferrous salts to ferric salts

b)

Cl2 oxidises ferric salts to ferrous salts

c)

Cl2 oxidises SO2 to H2SO4

d)

Cl2 oxidises Iodine to iodic acid

e)

Cl2 oxidises Iodine to HIO3

50.

Chlorine with dry slaked lime forms

(a)  

51.

Chlorine reacts with cold dilute alkalies to form

a)

Chloride only

b)

Hypochlorite and chlorate

c)

Chloride and hypochlorite

d)

None of these

52.

Chlorine reacts with hot concentrated alkalies to form

a)

Chloride only

b)

Chlorate and chloride

c)

Chloride, chlorate and hypochlorite

d)

The reaction is chemically impossible with regarding to the nature of chlorine

53.

Bleaching effect of chlorine is temporary

a)

True

b)

False

54.

(a)   bleaches vegetable or organic matter in the presence of moisture.

55.

When sodium chloride is heated with concentrated sulphuric acid,

a)

HCl is formed

b)

Chlorine gas is liberated

c)

The reaction do not occur as salt do not react with aci

d)

Sulphur is formed

56.

Choose the right properties of hydrogen Chloride

a)

Colourless pungent smelling gas

b)

Colourless rotten egg like smelling gas

c)

Easily liquified to colourless liquid and freezes to white crystalline solid

d)

Liquified with stress and freezes to an amorphous solid

e)

Ionises as H3O+ and Cl-

57.

Hydrochloric acid reacts with ammonia and gives white fumes of

(a)  

58.

When HCl is mixed with conc. HNO3 in the ratio 3:1, it is called

(a)  

59.

When hydrochloric acid reacts with weaker acids, which one of the following reactions take place?

a)

Addition reaction

b)

Elimination reaction

c)

Decomposition reaction

d)

Redox reaction

60.

Identify the right uses of HCl

a)

To extract glue from bones and purifying bone black

b)

In manufacture of chlorine and NH4Cl

c)

In manufacture of glucose

d)

In manufacture of chlorine only

61.

Which of the following oxoacids of halogens do not exist

a)

HOIO

b)

HOBrO

c)

HOClO

d)

HOF

e)

HOIO3

62.

Choose the right combination of Interhalogen compounds

a)

XX’3

b)

XX’5

c)

XX’7

d)

XX’

63.

XX’ - the more electronegative halogen is

(a)  

64.

Maximum number of atoms is present in which interhalogen compound?

(a)  

65.

Choose the right option: A-XX’3 B-XX’5 C-XX’7; 1-pentagonal pyramidal 2- square pyramidal 3-tetragonal 4-bent-t shaped

a)

A-4 B-2 C-1

b)

A-3 B-2 C-1

c)

A-4 B-3 C-1

d)

A-3 B-2 C-1

66.

Choose the right options with regards to interhalogen compounds

a)

Covalent and diamagnetic

b)

Covalent and paramagnetic

c)

Volatile liquids or gases except ClF is a solid

d)

Volatile solids or liquids except ClF is a gas

e)

Melting point and boiling point of theirs is a little lower than expected.

67.

Interhalogen compounds are more reactive than halogens because

(a)  

68.

When interhalogen compounds are hydrolysed, halide ion is formed by _____ and forms ____ when XX’, ____ when XX’3, ____ when XX’5 , ____ when XX’7

a)

Smaller halogen; hypohalite; halite;halate; perhalate

b)

Bigger halogen; hypohalite; halite;halate; perhalate

c)

Smaller halogen; hypohalite; halite;perhalate; halate

d)

Smaller halogen; halite;halate; hypothalate; perhalate

69.

Halogen means

a)

Water soluble compounds

b)

Salt making compounds

c)

Coloured compounds

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