Group VII A & Group VII B

Question 1

The Halogen family

Answer 1

Fluorine (F), Chlorine (Cl), Bromine (Br), Iodine (I), Astatine (At)

Question 2

Halogen is derived from 2 greek words meaning ?

Answer 2

sea salt

Question 3

who suggested the word Halogen

Answer 3

Berzelius

Question 4

Physical state of fluorine

Answer 4

pale yellow gas

Question 5

physical state of chlorine

Answer 5

greenish-yellow gas

Question 6

physical state of bromine

Answer 6

reddish-brown gas liquid

Question 7

physical state of iodine

Answer 7

black solid

Question 8

most active family or group of nonmetals in the periodic table

Answer 8

halogens

Question 8

why is there a gradual transition of the physical states of the halogens

Answer 8

as the atomic radius increases, the outermost electrons get further away from the influence of the nucleus

Question 8

why are halogens have high reactivity

Answer 8

bcos they are beside the noble gases, can achieve noble gases configuration by adding one electron

Question 9

the free state of halogens

Answer 9

exist as diatomic molecules

Question 10

Fluorine occurs as?

Answer 10

Fluorite (CaF[3]) and Cryolite (Na[3]AlF[6]

Question 11

commercial use of Iodine

Answer 11

Sodium Iodate (NaIO[3])

Question 12

Where can we find chlorine

Answer 12

large quantities as sodium chloride in sea water and inland deposits

Question 12

most important property of the halogens

Answer 12

they reduce and promote oxidation of some other substance

Question 13

best oxidizing agent

Answer 13

fluorine

Question 14

halogens that can be used as reducing agents

Answer 14

the two heaviest halides

Question 15

halogens that can be used as oxidizing agents

Answer 15

the two lightest halides

Question 16

oxidation state of halogen

Answer 16

-1

Question 16

most electronegative element

Answer 16

fluorine

Question 17

Oxyacids

Answer 17

Hypohalous acid (HXO), Halous acid (HXO[2]), halic acid (HXO[3]), perhalic acid (HXO[4])

Question 18

oxidation state of halogen when formed as Hypohalous acid

Answer 18

+1

Question 19

oxidation state of halogen when formed as Halous acid

Answer 19

+3

Question 20

oxidation state of halogen when formed as Halic acid

Answer 20

+5

Question 21

oxidation state of halogen when formed as perhalic acid

Answer 21

+7

Question 22

salts of Hypohalous acid

Answer 22

hypohalites

Question 22

salts of Halous acid

Answer 22

halites

Question 22

salts of Halic acid

Answer 22

halates

Question 22

Fluorine does not react directly to ?

Answer 22

Nitrogen, oxygen, and noble gases

Question 22

halogens react directly with most nonmetals to form ?

Answer 22

covalent compounds

Question 22

salts of perhalic acid

Answer 22

perhalates

Question 23

Chlorine does not readily react to ?

Answer 23

carbon

Question 24

halogens that are less reactive to nonmetals

Answer 24

Bromine and Iodine

Question 25

The Manganese subgroup

Answer 25

Manganese (Mn), Technetium (Tc), Rhenium (Re)

Question 25

element in the manganese subgroup with pharmaceutical imporatance

Answer 25

Manganese

Question 26

Manganese occurs mostly as ?

Answer 26

oxide MnO[2]

Question 26

Main use of manganese

Answer 26

alloy steels

Question 27

oxidation states of manganese

Answer 27

+2 to +7

Question 28

+2 compounds of manganese

Answer 28

good reducing agents

Question 29

Permanganate ion (MnO[4]-)

Answer 29

good oxidizing agent bcos of the +7 oxidation state

Question 30

oxidation state of manganese in an acid solution

Answer 30

reduced to the +2 state

Question 31

oxidation state of manganese in a basic solution

Answer 31

reduced to Manganese (IV) oxide