Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

NEET CHEMISTRY > HYDROGEN > Flashcards

HYDROGEN Flashcards

You may prefer our related Brainscape-certified flashcards:
Periodic Table flashcards Chemistry 101 flashcards AP® Chemistry flashcards Organic Chemistry 101 flashcards
1
Q

hydrogen has properties similar to …….&…….

A

akali metals halogens

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Electronic congiguration of hydrogen

A

1s2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

resemblance of hydrogen with group 1 elements

A

forms +ve univalent ion

has one electron in outermost shell

forms stable oxides , sulphides and halides

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

difference between hydrogen and group 1 metals

A

Ionization enthalpy of hydrogen is higher than that of the other group one elements

hydrogen ion is way smaller than the ions of other group 1 metals and it is always associated with other atoms or molecules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

similarity of hydrogen with halogens

A

gains an electron to attain nobel gas configuration

forms hydrides with carbon just like how halogen forms halides with carbon

similar ionization enthalpy

molecular forms are diatomic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

differnce between hydrogen and halogens

A

hydrogen is less reactive

electron affinity of hydrogen is lesser

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

name the isotopes of hydrogen

A

protium (1H1)

deuterium (1H2)

tritium (1H3)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

heavy hydrogen is

A

deuterium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

which isotope of hydrogen is radioactive and what particles does it emmit

A

tritium

beta particles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

abundance of of the isotopes of hydrogen (order)

A

P > D > T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Mass of hydrogen isotopes (order)

A

T>D>P

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

MP of isotopes of hydrogen (order)

A

T>D>P

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

BP of isotopes of hydrogen(order)

A

T>D>P

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

enthalpy of bond dissociation of isotopes of hydrogen(order)

A

T>D>P

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Why is impure zinc not used to form dihydrogen

A

it reacts very slow

therefor impurities are added

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

why isnt zinc reacted with concentrated H2SO4 for dihydrogen formation

A

forms SO2 instead of dihydrogen

therefor dilute h2so4 is used

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what electrodes are used in electrolysis of acidic water to form dihydrogen

A

platinum electrodes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

what electrodes are used in electrolysis of barium hydroxide to form dihydrogen

A

nickle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what is brine

A

aqueous NaCl

20
Q

during electrolysis of Brine what gas is released at the cathode

A

H2

21
Q

during elctrolysis of Brine what gas is released at the anode

A

Cl2

22
Q

what are the products when Zn reacts with NaOH

A

Sodium zincate (Na2ZnO2) and dihydrogen

23
Q

formation of dihydrogen from carbon and water is catalysed by ……….. at ……….. kelvin

A

nickle

1270 K

24
Q

what is water gas

A

mixture of CO and H2

25
Q

Wter gas AKA

A

synthesis gas

Syn gas

26
Q

production of syn gas from coal is called

A

coal gasification

27
Q

it is difficult to obtain dihydrogen from water gas

therefor what is done

A

CO of water gas is reacted with steam

28
Q

reaction of CO and steam is catalyzed by what at what temperature

A

Iron chromate (FeCrO4)

673 K

29
Q

physical properties of hydrogen

A

oudourless

colourless

combustible

tasteless

30
Q

comment on the solubility of dihydrogen in water

A

insoluble

31
Q

reaction of hydrogen and chlorine is aided by

A

sunlight

32
Q

reaction of hydrogen and bromine is aided by

A

heat (673 K )

33
Q

reaction of hydrogen and iodine is aided by

A

catalyst platinum and heat (673 K )

34
Q

Hydrogen reacts with

oxygen

nitrogen

metals

TO FORM

A

water

ammonia

metal hydride

35
Q

addition of hydrogen to unsaturated hydrocarbons is catalyzed by what at what temperature

A

Ni

473 K

36
Q

vegetable oil on addition of Hydrogen gets converted into

A

solid fat

37
Q

hydrogenation of vegetable oil catalyzed by what at what temperature

A

Ni

473 K

38
Q

olefins + dihydrogen + corbone monoxide =

A

aldehyde

39
Q

addition of dihydrogen to aldehyde forms

A

alcohol

40
Q

aldehyde to alcohol by dihydrogen is catalyzed by

A

platinum

41
Q

production of NH3 from N2 and H2 is catalyzed by what at what conditions

A

Fe

200 Atm

673 K

42
Q

production of methyl alcohol from CO and H2 is catalyzed by

A

cobalt

43
Q

name the type of hydrides

A

ionic hydride

covalent hydride

metallic hydride

44
Q

ionic hydriges are formed with every s-block element except

A

Be , Li , Mg

45
Q
A

NEET CHEMISTRY (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions