18 Group Flashcards by GANDURI veekshith

Q

What is major Constitution of noblegasses in air

A

Argon

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Source of helium

A

Natural gas

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Element of decay product of radium

A

Radon

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Cf an call collision

Gives

A

Organeson

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Highest bp and mp

A

Radon

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

they have elextron gain enthalphy +/-

A

large positive values

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

noble gases have very low mp values because

A

of they have dispersion forces

and helium have lowest mp of all elements

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

only compound of krypton ,radon

A

krf2 , rnf2

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

xeptf6 similar to

A

o2ptf6

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

xe and f2

ratios and formations

A

excess xe xef2

1: 5 xef4
1: 20 xef6

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

xef4 + o2f2

A

xef6+o2

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

linear and 3 lone pairs

A

xef2

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

square planar and 2 lp

A

xef4

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

distorted octahedral 1lp

A

xef6

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

xef2 +pf5
xef6 +mf
xef4 +sbf5

A

xef]+ +pf6-
xef7- + m+ [na,k,rb,cs]
xef3+ +sbf6-

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

colourless explosive solid

A

xeo3 with pyramidal shape and 1 lone pair