Join / Login
Back

Important questions on Group 18 Elements

Which of the following electronic configuration corresponds to an inert gas?

A

B

C

D

View Answer

The characteristic of the last elements in the periods of a periodic table:

A

orbital completely

B

zero electron affinity

C

zero tendency in accepting electrons

D

All of these

View Answer
Assertion

The elements of group 18 are called inert gases.

Reason

The elements of group 18 are mono-atomic in nature.

A

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

B

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

C

Assertion is correct but Reason is incorrect

D

Both Assertion and Reason are incorrect

View Answer

Match the following

List 1HeliumNeonArgonKryptonXenonRadon
List 2LazyHidden oneStranger$$1s^2, \ 2s^2,2p^6$$Sun's elementRadioactive
View Answer

If atomic number of inert gas is , then ionic bond is formed between:

A

and

B

and

C

both (a) and (b)

D

none of these

View Answer
Assertion

Noble gases are considered unreactive elements.

Reason

Group 18 elements have complete octet except Helium.

A

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

B

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

C

Assertion is correct but Reason is incorrect

D

Both Assertion and Reason are incorrect

View Answer

Answer the following with relevant reason.
Why the group in which inert gases are accommodated was called zero group?

View Answer
Assertion

Noble gases are diamagnetic atoms.

Reason

The atomic numbers of noble gases are even and all the orbitals are doubly occupied by the electrons.

A

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

B

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

C

Assertion is correct but Reason is incorrect

D

Both Assertion and Reason are incorrect

View Answer

Answer the following questions is a single digit integer.

How many noble gases are radioactive in nature?

View Answer

Which of the following statements is not correct?

A

Argon is used in electric bulbs

B

Krypton is obtained during radioactive disintegration

C

Half life of radon is only 3.8 days

D

Helium is used in producing very low temperatures

View Answer

VIEW MORE